Home / 3,960.32-5,464.92-2,281.58

Finding the Fourth Proportional to 3,960.32, 5,464.92 and 2,281.58

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Solution

The fourth proportional to 3,960.32, 5,464.92 and 2,281.58 is: 3,148.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960.32 : 5,464.92 = 2,281.58 : x
  2. Step 2: Convert to fraction form
    3,960.32/5,464.92 = 2,281.58/x
  3. Step 3: Cross multiply
    3,960.32x = 5,464.92 × 2,281.58
  4. Step 4: Simplify right side
    3,960.32x = 12,468,652.17
  5. Step 5: Solve for x
    x = 12,468,652.17/3,960.32
  6. Step 6: Final answer
    x = 3,148.40

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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.