Home / 2,981.13-4,471.69-2,538.26

Finding the Fourth Proportional to 2,981.13, 4,471.69 and 2,538.26

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Solution

The fourth proportional to 2,981.13, 4,471.69 and 2,538.26 is: 3,807.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,981.13 : 4,471.69 = 2,538.26 : x
  2. Step 2: Convert to fraction form
    2,981.13/4,471.69 = 2,538.26/x
  3. Step 3: Cross multiply
    2,981.13x = 4,471.69 × 2,538.26
  4. Step 4: Simplify right side
    2,981.13x = 11,350,311.86
  5. Step 5: Solve for x
    x = 11,350,311.86/2,981.13
  6. Step 6: Final answer
    x = 3,807.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.