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Finding the Fourth Proportional to 8,701.10, 13,051.65 and 2,858.30

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Solution

The fourth proportional to 8,701.10, 13,051.65 and 2,858.30 is: 4,287.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,701.10 : 13,051.65 = 2,858.30 : x
  2. Step 2: Convert to fraction form
    8,701.10/13,051.65 = 2,858.30/x
  3. Step 3: Cross multiply
    8,701.10x = 13,051.65 × 2,858.30
  4. Step 4: Simplify right side
    8,701.10x = 37,305,531.20
  5. Step 5: Solve for x
    x = 37,305,531.20/8,701.10
  6. Step 6: Final answer
    x = 4,287.45

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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.