Home / 1,108.04-1,660.75-490.44

Finding the Fourth Proportional to 1,108.04, 1,660.75 and 490.44

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Solution

The fourth proportional to 1,108.04, 1,660.75 and 490.44 is: 735.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108.04 : 1,660.75 = 490.44 : x
  2. Step 2: Convert to fraction form
    1,108.04/1,660.75 = 490.44/x
  3. Step 3: Cross multiply
    1,108.04x = 1,660.75 × 490.44
  4. Step 4: Simplify right side
    1,108.04x = 814,498.23
  5. Step 5: Solve for x
    x = 814,498.23/1,108.04
  6. Step 6: Final answer
    x = 735.08

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Double scale
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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.