Home / 3,931.64-5,425.62-2,752.28

Finding the Fourth Proportional to 3,931.64, 5,425.62 and 2,752.28

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Solution

The fourth proportional to 3,931.64, 5,425.62 and 2,752.28 is: 3,798.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931.64 : 5,425.62 = 2,752.28 : x
  2. Step 2: Convert to fraction form
    3,931.64/5,425.62 = 2,752.28/x
  3. Step 3: Cross multiply
    3,931.64x = 5,425.62 × 2,752.28
  4. Step 4: Simplify right side
    3,931.64x = 14,932,825.41
  5. Step 5: Solve for x
    x = 14,932,825.41/3,931.64
  6. Step 6: Final answer
    x = 3,798.12

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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.