Home / 1,112.06-1,534.60-614.70

Finding the Fourth Proportional to 1,112.06, 1,534.60 and 614.70

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Solution

The fourth proportional to 1,112.06, 1,534.60 and 614.70 is: 848.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112.06 : 1,534.60 = 614.70 : x
  2. Step 2: Convert to fraction form
    1,112.06/1,534.60 = 614.70/x
  3. Step 3: Cross multiply
    1,112.06x = 1,534.60 × 614.70
  4. Step 4: Simplify right side
    1,112.06x = 943,318.62
  5. Step 5: Solve for x
    x = 943,318.62/1,112.06
  6. Step 6: Final answer
    x = 848.26

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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.