Home / 2,248.79-3,373.40-688.77

Finding the Fourth Proportional to 2,248.79, 3,373.40 and 688.77

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Solution

The fourth proportional to 2,248.79, 3,373.40 and 688.77 is: 1,033.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,248.79 : 3,373.40 = 688.77 : x
  2. Step 2: Convert to fraction form
    2,248.79/3,373.40 = 688.77/x
  3. Step 3: Cross multiply
    2,248.79x = 3,373.40 × 688.77
  4. Step 4: Simplify right side
    2,248.79x = 2,323,498.44
  5. Step 5: Solve for x
    x = 2,323,498.44/2,248.79
  6. Step 6: Final answer
    x = 1,033.22

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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.