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Finding the Fourth Proportional to 6,633.76, 9,154.59 and 3,649.78

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Solution

The fourth proportional to 6,633.76, 9,154.59 and 3,649.78 is: 5,036.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,633.76 : 9,154.59 = 3,649.78 : x
  2. Step 2: Convert to fraction form
    6,633.76/9,154.59 = 3,649.78/x
  3. Step 3: Cross multiply
    6,633.76x = 9,154.59 × 3,649.78
  4. Step 4: Simplify right side
    6,633.76x = 33,412,239.49
  5. Step 5: Solve for x
    x = 33,412,239.49/6,633.76
  6. Step 6: Final answer
    x = 5,036.70

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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.