Home / 3,151.07-4,724.98-1,418.75

Finding the Fourth Proportional to 3,151.07, 4,724.98 and 1,418.75

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Solution

The fourth proportional to 3,151.07, 4,724.98 and 1,418.75 is: 2,127.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.07 : 4,724.98 = 1,418.75 : x
  2. Step 2: Convert to fraction form
    3,151.07/4,724.98 = 1,418.75/x
  3. Step 3: Cross multiply
    3,151.07x = 4,724.98 × 1,418.75
  4. Step 4: Simplify right side
    3,151.07x = 6,703,565.38
  5. Step 5: Solve for x
    x = 6,703,565.38/3,151.07
  6. Step 6: Final answer
    x = 2,127.39

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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.