Home / 1,125.18-1,552.58-627.83

Finding the Fourth Proportional to 1,125.18, 1,552.58 and 627.83

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Solution

The fourth proportional to 1,125.18, 1,552.58 and 627.83 is: 866.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125.18 : 1,552.58 = 627.83 : x
  2. Step 2: Convert to fraction form
    1,125.18/1,552.58 = 627.83/x
  3. Step 3: Cross multiply
    1,125.18x = 1,552.58 × 627.83
  4. Step 4: Simplify right side
    1,125.18x = 974,756.30
  5. Step 5: Solve for x
    x = 974,756.30/1,125.18
  6. Step 6: Final answer
    x = 866.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.