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Finding the Fourth Proportional to 5,801.10, 8,701.70 and 1,905.50

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Solution

The fourth proportional to 5,801.10, 8,701.70 and 1,905.50 is: 2,858.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,801.10 : 8,701.70 = 1,905.50 : x
  2. Step 2: Convert to fraction form
    5,801.10/8,701.70 = 1,905.50/x
  3. Step 3: Cross multiply
    5,801.10x = 8,701.70 × 1,905.50
  4. Step 4: Simplify right side
    5,801.10x = 16,581,089.35
  5. Step 5: Solve for x
    x = 16,581,089.35/5,801.10
  6. Step 6: Final answer
    x = 2,858.27

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.