Home / 5,125.59-7,678.76-2,927.65

Finding the Fourth Proportional to 5,125.59, 7,678.76 and 2,927.65

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Solution

The fourth proportional to 5,125.59, 7,678.76 and 2,927.65 is: 4,385.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.59 : 7,678.76 = 2,927.65 : x
  2. Step 2: Convert to fraction form
    5,125.59/7,678.76 = 2,927.65/x
  3. Step 3: Cross multiply
    5,125.59x = 7,678.76 × 2,927.65
  4. Step 4: Simplify right side
    5,125.59x = 22,480,721.71
  5. Step 5: Solve for x
    x = 22,480,721.71/5,125.59
  6. Step 6: Final answer
    x = 4,385.98

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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.