Home / 1,113.18-1,669.99-372.86

Finding the Fourth Proportional to 1,113.18, 1,669.99 and 372.86

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Solution

The fourth proportional to 1,113.18, 1,669.99 and 372.86 is: 559.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113.18 : 1,669.99 = 372.86 : x
  2. Step 2: Convert to fraction form
    1,113.18/1,669.99 = 372.86/x
  3. Step 3: Cross multiply
    1,113.18x = 1,669.99 × 372.86
  4. Step 4: Simplify right side
    1,113.18x = 622,675.90
  5. Step 5: Solve for x
    x = 622,675.90/1,113.18
  6. Step 6: Final answer
    x = 559.37

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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.