Home / 3,400.53-5,099.85-1,320.14

Finding the Fourth Proportional to 3,400.53, 5,099.85 and 1,320.14

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Solution

The fourth proportional to 3,400.53, 5,099.85 and 1,320.14 is: 1,979.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,400.53 : 5,099.85 = 1,320.14 : x
  2. Step 2: Convert to fraction form
    3,400.53/5,099.85 = 1,320.14/x
  3. Step 3: Cross multiply
    3,400.53x = 5,099.85 × 1,320.14
  4. Step 4: Simplify right side
    3,400.53x = 6,732,490.48
  5. Step 5: Solve for x
    x = 6,732,490.48/3,400.53
  6. Step 6: Final answer
    x = 1,979.84

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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.