Home / 6,649.28-9,975-2,490.72

Finding the Fourth Proportional to 6,649.28, 9,975 and 2,490.72

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Solution

The fourth proportional to 6,649.28, 9,975 and 2,490.72 is: 3,736.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,649.28 : 9,975 = 2,490.72 : x
  2. Step 2: Convert to fraction form
    6,649.28/9,975 = 2,490.72/x
  3. Step 3: Cross multiply
    6,649.28x = 9,975 × 2,490.72
  4. Step 4: Simplify right side
    6,649.28x = 24,844,932.00
  5. Step 5: Solve for x
    x = 24,844,932.00/6,649.28
  6. Step 6: Final answer
    x = 3,736.48

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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.