Home / 1,110.20-1,532.07-612.84

Finding the Fourth Proportional to 1,110.20, 1,532.07 and 612.84

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Solution

The fourth proportional to 1,110.20, 1,532.07 and 612.84 is: 845.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110.20 : 1,532.07 = 612.84 : x
  2. Step 2: Convert to fraction form
    1,110.20/1,532.07 = 612.84/x
  3. Step 3: Cross multiply
    1,110.20x = 1,532.07 × 612.84
  4. Step 4: Simplify right side
    1,110.20x = 938,913.78
  5. Step 5: Solve for x
    x = 938,913.78/1,110.20
  6. Step 6: Final answer
    x = 845.72

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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.