Home / 2,319.28-3,478.60-587.80

Finding the Fourth Proportional to 2,319.28, 3,478.60 and 587.80

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Solution

The fourth proportional to 2,319.28, 3,478.60 and 587.80 is: 881.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.28 : 3,478.60 = 587.80 : x
  2. Step 2: Convert to fraction form
    2,319.28/3,478.60 = 587.80/x
  3. Step 3: Cross multiply
    2,319.28x = 3,478.60 × 587.80
  4. Step 4: Simplify right side
    2,319.28x = 2,044,721.08
  5. Step 5: Solve for x
    x = 2,044,721.08/2,319.28
  6. Step 6: Final answer
    x = 881.62

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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.