Home / 4,320.81-6,480.81-1,399.14

Finding the Fourth Proportional to 4,320.81, 6,480.81 and 1,399.14

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Solution

The fourth proportional to 4,320.81, 6,480.81 and 1,399.14 is: 2,098.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,320.81 : 6,480.81 = 1,399.14 : x
  2. Step 2: Convert to fraction form
    4,320.81/6,480.81 = 1,399.14/x
  3. Step 3: Cross multiply
    4,320.81x = 6,480.81 × 1,399.14
  4. Step 4: Simplify right side
    4,320.81x = 9,067,560.50
  5. Step 5: Solve for x
    x = 9,067,560.50/4,320.81
  6. Step 6: Final answer
    x = 2,098.58

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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.