Home / 5,439.64-8,140.92-3,774.32

Finding the Fourth Proportional to 5,439.64, 8,140.92 and 3,774.32

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Solution

The fourth proportional to 5,439.64, 8,140.92 and 3,774.32 is: 5,648.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.64 : 8,140.92 = 3,774.32 : x
  2. Step 2: Convert to fraction form
    5,439.64/8,140.92 = 3,774.32/x
  3. Step 3: Cross multiply
    5,439.64x = 8,140.92 × 3,774.32
  4. Step 4: Simplify right side
    5,439.64x = 30,726,437.17
  5. Step 5: Solve for x
    x = 30,726,437.17/5,439.64
  6. Step 6: Final answer
    x = 5,648.62

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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.