Home / 1,124.20-1,687.02-546.76

Finding the Fourth Proportional to 1,124.20, 1,687.02 and 546.76

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Solution

The fourth proportional to 1,124.20, 1,687.02 and 546.76 is: 820.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124.20 : 1,687.02 = 546.76 : x
  2. Step 2: Convert to fraction form
    1,124.20/1,687.02 = 546.76/x
  3. Step 3: Cross multiply
    1,124.20x = 1,687.02 × 546.76
  4. Step 4: Simplify right side
    1,124.20x = 922,390.84
  5. Step 5: Solve for x
    x = 922,390.84/1,124.20
  6. Step 6: Final answer
    x = 820.49

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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.