Home / 3,712.21-5,117.10-2,531.23

Finding the Fourth Proportional to 3,712.21, 5,117.10 and 2,531.23

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Solution

The fourth proportional to 3,712.21, 5,117.10 and 2,531.23 is: 3,489.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,712.21 : 5,117.10 = 2,531.23 : x
  2. Step 2: Convert to fraction form
    3,712.21/5,117.10 = 2,531.23/x
  3. Step 3: Cross multiply
    3,712.21x = 5,117.10 × 2,531.23
  4. Step 4: Simplify right side
    3,712.21x = 12,952,557.03
  5. Step 5: Solve for x
    x = 12,952,557.03/3,712.21
  6. Step 6: Final answer
    x = 3,489.18

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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.