Home / 3,614.10-4,987.17-2,121.90

Finding the Fourth Proportional to 3,614.10, 4,987.17 and 2,121.90

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Solution

The fourth proportional to 3,614.10, 4,987.17 and 2,121.90 is: 2,928.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,614.10 : 4,987.17 = 2,121.90 : x
  2. Step 2: Convert to fraction form
    3,614.10/4,987.17 = 2,121.90/x
  3. Step 3: Cross multiply
    3,614.10x = 4,987.17 × 2,121.90
  4. Step 4: Simplify right side
    3,614.10x = 10,582,276.02
  5. Step 5: Solve for x
    x = 10,582,276.02/3,614.10
  6. Step 6: Final answer
    x = 2,928.05

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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.