Home / 3,724.68-5,140.08-2,153.82

Finding the Fourth Proportional to 3,724.68, 5,140.08 and 2,153.82

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Solution

The fourth proportional to 3,724.68, 5,140.08 and 2,153.82 is: 2,972.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,724.68 : 5,140.08 = 2,153.82 : x
  2. Step 2: Convert to fraction form
    3,724.68/5,140.08 = 2,153.82/x
  3. Step 3: Cross multiply
    3,724.68x = 5,140.08 × 2,153.82
  4. Step 4: Simplify right side
    3,724.68x = 11,070,807.11
  5. Step 5: Solve for x
    x = 11,070,807.11/3,724.68
  6. Step 6: Final answer
    x = 2,972.28

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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.