Home / 1,552.62-2,328.45-686.70

Finding the Fourth Proportional to 1,552.62, 2,328.45 and 686.70

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Solution

The fourth proportional to 1,552.62, 2,328.45 and 686.70 is: 1,029.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,552.62 : 2,328.45 = 686.70 : x
  2. Step 2: Convert to fraction form
    1,552.62/2,328.45 = 686.70/x
  3. Step 3: Cross multiply
    1,552.62x = 2,328.45 × 686.70
  4. Step 4: Simplify right side
    1,552.62x = 1,598,946.62
  5. Step 5: Solve for x
    x = 1,598,946.62/1,552.62
  6. Step 6: Final answer
    x = 1,029.84

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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.