Home / 3,931.13-5,422.39-2,359.23

Finding the Fourth Proportional to 3,931.13, 5,422.39 and 2,359.23

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Solution

The fourth proportional to 3,931.13, 5,422.39 and 2,359.23 is: 3,254.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931.13 : 5,422.39 = 2,359.23 : x
  2. Step 2: Convert to fraction form
    3,931.13/5,422.39 = 2,359.23/x
  3. Step 3: Cross multiply
    3,931.13x = 5,422.39 × 2,359.23
  4. Step 4: Simplify right side
    3,931.13x = 12,792,652.20
  5. Step 5: Solve for x
    x = 12,792,652.20/3,931.13
  6. Step 6: Final answer
    x = 3,254.19

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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.