Home / 1,660.62-2,291.76-1,100.10

Finding the Fourth Proportional to 1,660.62, 2,291.76 and 1,100.10

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Solution

The fourth proportional to 1,660.62, 2,291.76 and 1,100.10 is: 1,518.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,660.62 : 2,291.76 = 1,100.10 : x
  2. Step 2: Convert to fraction form
    1,660.62/2,291.76 = 1,100.10/x
  3. Step 3: Cross multiply
    1,660.62x = 2,291.76 × 1,100.10
  4. Step 4: Simplify right side
    1,660.62x = 2,521,165.18
  5. Step 5: Solve for x
    x = 2,521,165.18/1,660.62
  6. Step 6: Final answer
    x = 1,518.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.