Home / 4,972.13-6,861.53-2,877.47

Finding the Fourth Proportional to 4,972.13, 6,861.53 and 2,877.47

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Solution

The fourth proportional to 4,972.13, 6,861.53 and 2,877.47 is: 3,970.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,972.13 : 6,861.53 = 2,877.47 : x
  2. Step 2: Convert to fraction form
    4,972.13/6,861.53 = 2,877.47/x
  3. Step 3: Cross multiply
    4,972.13x = 6,861.53 × 2,877.47
  4. Step 4: Simplify right side
    4,972.13x = 19,743,819.62
  5. Step 5: Solve for x
    x = 19,743,819.62/4,972.13
  6. Step 6: Final answer
    x = 3,970.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.