Home / 2,431.42-3,647.14-1,335.17

Finding the Fourth Proportional to 2,431.42, 3,647.14 and 1,335.17

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Solution

The fourth proportional to 2,431.42, 3,647.14 and 1,335.17 is: 2,002.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.42 : 3,647.14 = 1,335.17 : x
  2. Step 2: Convert to fraction form
    2,431.42/3,647.14 = 1,335.17/x
  3. Step 3: Cross multiply
    2,431.42x = 3,647.14 × 1,335.17
  4. Step 4: Simplify right side
    2,431.42x = 4,869,557.69
  5. Step 5: Solve for x
    x = 4,869,557.69/2,431.42
  6. Step 6: Final answer
    x = 2,002.76

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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.