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Finding the Fourth Proportional to 6,451.42, 8,901.89 and 4,330.49

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Solution

The fourth proportional to 6,451.42, 8,901.89 and 4,330.49 is: 5,975.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,451.42 : 8,901.89 = 4,330.49 : x
  2. Step 2: Convert to fraction form
    6,451.42/8,901.89 = 4,330.49/x
  3. Step 3: Cross multiply
    6,451.42x = 8,901.89 × 4,330.49
  4. Step 4: Simplify right side
    6,451.42x = 38,549,514.65
  5. Step 5: Solve for x
    x = 38,549,514.65/6,451.42
  6. Step 6: Final answer
    x = 5,975.35

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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.