Home / 7,951.34-11,920.82-3,565.74

Finding the Fourth Proportional to 7,951.34, 11,920.82 and 3,565.74

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Solution

The fourth proportional to 7,951.34, 11,920.82 and 3,565.74 is: 5,345.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,951.34 : 11,920.82 = 3,565.74 : x
  2. Step 2: Convert to fraction form
    7,951.34/11,920.82 = 3,565.74/x
  3. Step 3: Cross multiply
    7,951.34x = 11,920.82 × 3,565.74
  4. Step 4: Simplify right side
    7,951.34x = 42,506,544.71
  5. Step 5: Solve for x
    x = 42,506,544.71/7,951.34
  6. Step 6: Final answer
    x = 5,345.83

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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.