Home / 1,112.06-1,534.75-614.79

Finding the Fourth Proportional to 1,112.06, 1,534.75 and 614.79

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Solution

The fourth proportional to 1,112.06, 1,534.75 and 614.79 is: 848.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112.06 : 1,534.75 = 614.79 : x
  2. Step 2: Convert to fraction form
    1,112.06/1,534.75 = 614.79/x
  3. Step 3: Cross multiply
    1,112.06x = 1,534.75 × 614.79
  4. Step 4: Simplify right side
    1,112.06x = 943,547.42
  5. Step 5: Solve for x
    x = 943,547.42/1,112.06
  6. Step 6: Final answer
    x = 848.47

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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.