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Finding the Fourth Proportional to 4,874.70, 7,312.05 and 2,801.10

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Solution

The fourth proportional to 4,874.70, 7,312.05 and 2,801.10 is: 4,201.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,874.70 : 7,312.05 = 2,801.10 : x
  2. Step 2: Convert to fraction form
    4,874.70/7,312.05 = 2,801.10/x
  3. Step 3: Cross multiply
    4,874.70x = 7,312.05 × 2,801.10
  4. Step 4: Simplify right side
    4,874.70x = 20,481,783.26
  5. Step 5: Solve for x
    x = 20,481,783.26/4,874.70
  6. Step 6: Final answer
    x = 4,201.65

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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.