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Finding the Fourth Proportional to 2,323.40, 3,484.28 and 679.52

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Solution

The fourth proportional to 2,323.40, 3,484.28 and 679.52 is: 1,019.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,323.40 : 3,484.28 = 679.52 : x
  2. Step 2: Convert to fraction form
    2,323.40/3,484.28 = 679.52/x
  3. Step 3: Cross multiply
    2,323.40x = 3,484.28 × 679.52
  4. Step 4: Simplify right side
    2,323.40x = 2,367,637.95
  5. Step 5: Solve for x
    x = 2,367,637.95/2,323.40
  6. Step 6: Final answer
    x = 1,019.04

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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.