Home / 6,446.10-9,671.45-3,978.04

Finding the Fourth Proportional to 6,446.10, 9,671.45 and 3,978.04

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Solution

The fourth proportional to 6,446.10, 9,671.45 and 3,978.04 is: 5,968.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,446.10 : 9,671.45 = 3,978.04 : x
  2. Step 2: Convert to fraction form
    6,446.10/9,671.45 = 3,978.04/x
  3. Step 3: Cross multiply
    6,446.10x = 9,671.45 × 3,978.04
  4. Step 4: Simplify right side
    6,446.10x = 38,473,414.96
  5. Step 5: Solve for x
    x = 38,473,414.96/6,446.10
  6. Step 6: Final answer
    x = 5,968.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.