Home / 3,712.95-5,569.43-1,115.91

Finding the Fourth Proportional to 3,712.95, 5,569.43 and 1,115.91

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Solution

The fourth proportional to 3,712.95, 5,569.43 and 1,115.91 is: 1,673.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,712.95 : 5,569.43 = 1,115.91 : x
  2. Step 2: Convert to fraction form
    3,712.95/5,569.43 = 1,115.91/x
  3. Step 3: Cross multiply
    3,712.95x = 5,569.43 × 1,115.91
  4. Step 4: Simplify right side
    3,712.95x = 6,214,977.05
  5. Step 5: Solve for x
    x = 6,214,977.05/3,712.95
  6. Step 6: Final answer
    x = 1,673.87

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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.