Home / 1,110.31-1,532.30-612.95

Finding the Fourth Proportional to 1,110.31, 1,532.30 and 612.95

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Solution

The fourth proportional to 1,110.31, 1,532.30 and 612.95 is: 845.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110.31 : 1,532.30 = 612.95 : x
  2. Step 2: Convert to fraction form
    1,110.31/1,532.30 = 612.95/x
  3. Step 3: Cross multiply
    1,110.31x = 1,532.30 × 612.95
  4. Step 4: Simplify right side
    1,110.31x = 939,212.56
  5. Step 5: Solve for x
    x = 939,212.56/1,110.31
  6. Step 6: Final answer
    x = 845.90

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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.