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Finding the Fourth Proportional to 6,450.40, 8,901.30 and 3,655.84

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Solution

The fourth proportional to 6,450.40, 8,901.30 and 3,655.84 is: 5,044.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,450.40 : 8,901.30 = 3,655.84 : x
  2. Step 2: Convert to fraction form
    6,450.40/8,901.30 = 3,655.84/x
  3. Step 3: Cross multiply
    6,450.40x = 8,901.30 × 3,655.84
  4. Step 4: Simplify right side
    6,450.40x = 32,541,728.59
  5. Step 5: Solve for x
    x = 32,541,728.59/6,450.40
  6. Step 6: Final answer
    x = 5,044.92

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Half scale
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Double scale
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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.