Home / 1,112.28-1,534.95-614.90

Finding the Fourth Proportional to 1,112.28, 1,534.95 and 614.90

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Solution

The fourth proportional to 1,112.28, 1,534.95 and 614.90 is: 848.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112.28 : 1,534.95 = 614.90 : x
  2. Step 2: Convert to fraction form
    1,112.28/1,534.95 = 614.90/x
  3. Step 3: Cross multiply
    1,112.28x = 1,534.95 × 614.90
  4. Step 4: Simplify right side
    1,112.28x = 943,840.76
  5. Step 5: Solve for x
    x = 943,840.76/1,112.28
  6. Step 6: Final answer
    x = 848.57

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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.