Home / 3,960.18-5,464.32-2,281.32

Finding the Fourth Proportional to 3,960.18, 5,464.32 and 2,281.32

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Solution

The fourth proportional to 3,960.18, 5,464.32 and 2,281.32 is: 3,147.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960.18 : 5,464.32 = 2,281.32 : x
  2. Step 2: Convert to fraction form
    3,960.18/5,464.32 = 2,281.32/x
  3. Step 3: Cross multiply
    3,960.18x = 5,464.32 × 2,281.32
  4. Step 4: Simplify right side
    3,960.18x = 12,465,862.50
  5. Step 5: Solve for x
    x = 12,465,862.50/3,960.18
  6. Step 6: Final answer
    x = 3,147.80

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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.