Home / 6,464.87-8,921.28-3,951.18

Finding the Fourth Proportional to 6,464.87, 8,921.28 and 3,951.18

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Solution

The fourth proportional to 6,464.87, 8,921.28 and 3,951.18 is: 5,452.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,464.87 : 8,921.28 = 3,951.18 : x
  2. Step 2: Convert to fraction form
    6,464.87/8,921.28 = 3,951.18/x
  3. Step 3: Cross multiply
    6,464.87x = 8,921.28 × 3,951.18
  4. Step 4: Simplify right side
    6,464.87x = 35,249,583.11
  5. Step 5: Solve for x
    x = 35,249,583.11/6,464.87
  6. Step 6: Final answer
    x = 5,452.48

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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.