Home / 3,931.02-5,425.96-2,338.79

Finding the Fourth Proportional to 3,931.02, 5,425.96 and 2,338.79

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Solution

The fourth proportional to 3,931.02, 5,425.96 and 2,338.79 is: 3,228.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931.02 : 5,425.96 = 2,338.79 : x
  2. Step 2: Convert to fraction form
    3,931.02/5,425.96 = 2,338.79/x
  3. Step 3: Cross multiply
    3,931.02x = 5,425.96 × 2,338.79
  4. Step 4: Simplify right side
    3,931.02x = 12,690,180.99
  5. Step 5: Solve for x
    x = 12,690,180.99/3,931.02
  6. Step 6: Final answer
    x = 3,228.22

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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.