Home / 7,125.62-9,833.56-3,981.74

Finding the Fourth Proportional to 7,125.62, 9,833.56 and 3,981.74

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Solution

The fourth proportional to 7,125.62, 9,833.56 and 3,981.74 is: 5,494.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,125.62 : 9,833.56 = 3,981.74 : x
  2. Step 2: Convert to fraction form
    7,125.62/9,833.56 = 3,981.74/x
  3. Step 3: Cross multiply
    7,125.62x = 9,833.56 × 3,981.74
  4. Step 4: Simplify right side
    7,125.62x = 39,154,679.19
  5. Step 5: Solve for x
    x = 39,154,679.19/7,125.62
  6. Step 6: Final answer
    x = 5,494.92

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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.