Home / 1,607.20-2,408.31-1,114.57

Finding the Fourth Proportional to 1,607.20, 2,408.31 and 1,114.57

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Solution

The fourth proportional to 1,607.20, 2,408.31 and 1,114.57 is: 1,670.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,607.20 : 2,408.31 = 1,114.57 : x
  2. Step 2: Convert to fraction form
    1,607.20/2,408.31 = 1,114.57/x
  3. Step 3: Cross multiply
    1,607.20x = 2,408.31 × 1,114.57
  4. Step 4: Simplify right side
    1,607.20x = 2,684,221.38
  5. Step 5: Solve for x
    x = 2,684,221.38/1,607.20
  6. Step 6: Final answer
    x = 1,670.12

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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.