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Finding the Fourth Proportional to 6,451.34, 8,902.64 and 3,798.91

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Solution

The fourth proportional to 6,451.34, 8,902.64 and 3,798.91 is: 5,242.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,451.34 : 8,902.64 = 3,798.91 : x
  2. Step 2: Convert to fraction form
    6,451.34/8,902.64 = 3,798.91/x
  3. Step 3: Cross multiply
    6,451.34x = 8,902.64 × 3,798.91
  4. Step 4: Simplify right side
    6,451.34x = 33,820,264.61
  5. Step 5: Solve for x
    x = 33,820,264.61/6,451.34
  6. Step 6: Final answer
    x = 5,242.36

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Half scale
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Double scale
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Similar ratio
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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.