Home / 1,520.93-2,279.00-1,108.17

Finding the Fourth Proportional to 1,520.93, 2,279.00 and 1,108.17

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Solution

The fourth proportional to 1,520.93, 2,279.00 and 1,108.17 is: 1,660.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520.93 : 2,279.00 = 1,108.17 : x
  2. Step 2: Convert to fraction form
    1,520.93/2,279.00 = 1,108.17/x
  3. Step 3: Cross multiply
    1,520.93x = 2,279.00 × 1,108.17
  4. Step 4: Simplify right side
    1,520.93x = 2,525,522.20
  5. Step 5: Solve for x
    x = 2,525,522.20/1,520.93
  6. Step 6: Final answer
    x = 1,660.51

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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.