Home / 4,320.64-6,480.96-1,399.17

Finding the Fourth Proportional to 4,320.64, 6,480.96 and 1,399.17

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Solution

The fourth proportional to 4,320.64, 6,480.96 and 1,399.17 is: 2,098.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,320.64 : 6,480.96 = 1,399.17 : x
  2. Step 2: Convert to fraction form
    4,320.64/6,480.96 = 1,399.17/x
  3. Step 3: Cross multiply
    4,320.64x = 6,480.96 × 1,399.17
  4. Step 4: Simplify right side
    4,320.64x = 9,067,957.81
  5. Step 5: Solve for x
    x = 9,067,957.81/4,320.64
  6. Step 6: Final answer
    x = 2,098.76

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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.