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Finding the Fourth Proportional to 6,456.08, 8,905.63 and 4,065.11

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Solution

The fourth proportional to 6,456.08, 8,905.63 and 4,065.11 is: 5,607.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,456.08 : 8,905.63 = 4,065.11 : x
  2. Step 2: Convert to fraction form
    6,456.08/8,905.63 = 4,065.11/x
  3. Step 3: Cross multiply
    6,456.08x = 8,905.63 × 4,065.11
  4. Step 4: Simplify right side
    6,456.08x = 36,202,359.52
  5. Step 5: Solve for x
    x = 36,202,359.52/6,456.08
  6. Step 6: Final answer
    x = 5,607.49

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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.