Home / 7,640.01-10,545.45-4,987.82

Finding the Fourth Proportional to 7,640.01, 10,545.45 and 4,987.82

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Solution

The fourth proportional to 7,640.01, 10,545.45 and 4,987.82 is: 6,884.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,640.01 : 10,545.45 = 4,987.82 : x
  2. Step 2: Convert to fraction form
    7,640.01/10,545.45 = 4,987.82/x
  3. Step 3: Cross multiply
    7,640.01x = 10,545.45 × 4,987.82
  4. Step 4: Simplify right side
    7,640.01x = 52,598,806.42
  5. Step 5: Solve for x
    x = 52,598,806.42/7,640.01
  6. Step 6: Final answer
    x = 6,884.65

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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.