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Finding the Fourth Proportional to 3,717.92, 5,130.96 and 2,061.92

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Solution

The fourth proportional to 3,717.92, 5,130.96 and 2,061.92 is: 2,845.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717.92 : 5,130.96 = 2,061.92 : x
  2. Step 2: Convert to fraction form
    3,717.92/5,130.96 = 2,061.92/x
  3. Step 3: Cross multiply
    3,717.92x = 5,130.96 × 2,061.92
  4. Step 4: Simplify right side
    3,717.92x = 10,579,629.04
  5. Step 5: Solve for x
    x = 10,579,629.04/3,717.92
  6. Step 6: Final answer
    x = 2,845.58

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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.