Home / 3,617.32-4,990.98-2,125.30

Finding the Fourth Proportional to 3,617.32, 4,990.98 and 2,125.30

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Solution

The fourth proportional to 3,617.32, 4,990.98 and 2,125.30 is: 2,932.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,617.32 : 4,990.98 = 2,125.30 : x
  2. Step 2: Convert to fraction form
    3,617.32/4,990.98 = 2,125.30/x
  3. Step 3: Cross multiply
    3,617.32x = 4,990.98 × 2,125.30
  4. Step 4: Simplify right side
    3,617.32x = 10,607,329.79
  5. Step 5: Solve for x
    x = 10,607,329.79/3,617.32
  6. Step 6: Final answer
    x = 2,932.37

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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.