Home / 2,451.07-3,677.27-891.21

Finding the Fourth Proportional to 2,451.07, 3,677.27 and 891.21

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Solution

The fourth proportional to 2,451.07, 3,677.27 and 891.21 is: 1,337.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,451.07 : 3,677.27 = 891.21 : x
  2. Step 2: Convert to fraction form
    2,451.07/3,677.27 = 891.21/x
  3. Step 3: Cross multiply
    2,451.07x = 3,677.27 × 891.21
  4. Step 4: Simplify right side
    2,451.07x = 3,277,229.13
  5. Step 5: Solve for x
    x = 3,277,229.13/2,451.07
  6. Step 6: Final answer
    x = 1,337.06

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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.