Home / 1,110.38-1,666.10-617.15

Finding the Fourth Proportional to 1,110.38, 1,666.10 and 617.15

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Solution

The fourth proportional to 1,110.38, 1,666.10 and 617.15 is: 926.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110.38 : 1,666.10 = 617.15 : x
  2. Step 2: Convert to fraction form
    1,110.38/1,666.10 = 617.15/x
  3. Step 3: Cross multiply
    1,110.38x = 1,666.10 × 617.15
  4. Step 4: Simplify right side
    1,110.38x = 1,028,239.32
  5. Step 5: Solve for x
    x = 1,028,239.32/1,110.38
  6. Step 6: Final answer
    x = 926.03

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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.