Home / 6,427.10-8,869.52-3,909.32

Finding the Fourth Proportional to 6,427.10, 8,869.52 and 3,909.32

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Solution

The fourth proportional to 6,427.10, 8,869.52 and 3,909.32 is: 5,394.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,427.10 : 8,869.52 = 3,909.32 : x
  2. Step 2: Convert to fraction form
    6,427.10/8,869.52 = 3,909.32/x
  3. Step 3: Cross multiply
    6,427.10x = 8,869.52 × 3,909.32
  4. Step 4: Simplify right side
    6,427.10x = 34,673,728.03
  5. Step 5: Solve for x
    x = 34,673,728.03/6,427.10
  6. Step 6: Final answer
    x = 5,394.92

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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.