Home / 3,725.64-5,140.98-2,154.24

Finding the Fourth Proportional to 3,725.64, 5,140.98 and 2,154.24

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Solution

The fourth proportional to 3,725.64, 5,140.98 and 2,154.24 is: 2,972.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,725.64 : 5,140.98 = 2,154.24 : x
  2. Step 2: Convert to fraction form
    3,725.64/5,140.98 = 2,154.24/x
  3. Step 3: Cross multiply
    3,725.64x = 5,140.98 × 2,154.24
  4. Step 4: Simplify right side
    3,725.64x = 11,074,904.76
  5. Step 5: Solve for x
    x = 11,074,904.76/3,725.64
  6. Step 6: Final answer
    x = 2,972.62

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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.