Home / 3,617.13-4,990.81-2,125.11

Finding the Fourth Proportional to 3,617.13, 4,990.81 and 2,125.11

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Solution

The fourth proportional to 3,617.13, 4,990.81 and 2,125.11 is: 2,932.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,617.13 : 4,990.81 = 2,125.11 : x
  2. Step 2: Convert to fraction form
    3,617.13/4,990.81 = 2,125.11/x
  3. Step 3: Cross multiply
    3,617.13x = 4,990.81 × 2,125.11
  4. Step 4: Simplify right side
    3,617.13x = 10,606,020.24
  5. Step 5: Solve for x
    x = 10,606,020.24/3,617.13
  6. Step 6: Final answer
    x = 2,932.16

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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.