Home / 1,112.05-1,534.61-614.68

Finding the Fourth Proportional to 1,112.05, 1,534.61 and 614.68

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Solution

The fourth proportional to 1,112.05, 1,534.61 and 614.68 is: 848.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112.05 : 1,534.61 = 614.68 : x
  2. Step 2: Convert to fraction form
    1,112.05/1,534.61 = 614.68/x
  3. Step 3: Cross multiply
    1,112.05x = 1,534.61 × 614.68
  4. Step 4: Simplify right side
    1,112.05x = 943,283.33
  5. Step 5: Solve for x
    x = 943,283.33/1,112.05
  6. Step 6: Final answer
    x = 848.24

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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.