Home / 1,681.92-2,521.44-1,103.52

Finding the Fourth Proportional to 1,681.92, 2,521.44 and 1,103.52

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Solution

The fourth proportional to 1,681.92, 2,521.44 and 1,103.52 is: 1,654.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681.92 : 2,521.44 = 1,103.52 : x
  2. Step 2: Convert to fraction form
    1,681.92/2,521.44 = 1,103.52/x
  3. Step 3: Cross multiply
    1,681.92x = 2,521.44 × 1,103.52
  4. Step 4: Simplify right side
    1,681.92x = 2,782,459.47
  5. Step 5: Solve for x
    x = 2,782,459.47/1,681.92
  6. Step 6: Final answer
    x = 1,654.34

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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.