Home / 6,990.38-10,490.42-4,519.07

Finding the Fourth Proportional to 6,990.38, 10,490.42 and 4,519.07

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Solution

The fourth proportional to 6,990.38, 10,490.42 and 4,519.07 is: 6,781.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,990.38 : 10,490.42 = 4,519.07 : x
  2. Step 2: Convert to fraction form
    6,990.38/10,490.42 = 4,519.07/x
  3. Step 3: Cross multiply
    6,990.38x = 10,490.42 × 4,519.07
  4. Step 4: Simplify right side
    6,990.38x = 47,406,889.86
  5. Step 5: Solve for x
    x = 47,406,889.86/6,990.38
  6. Step 6: Final answer
    x = 6,781.74

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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.