Home / 1,112.48-1,535.34-615.16

Finding the Fourth Proportional to 1,112.48, 1,535.34 and 615.16

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Solution

The fourth proportional to 1,112.48, 1,535.34 and 615.16 is: 848.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112.48 : 1,535.34 = 615.16 : x
  2. Step 2: Convert to fraction form
    1,112.48/1,535.34 = 615.16/x
  3. Step 3: Cross multiply
    1,112.48x = 1,535.34 × 615.16
  4. Step 4: Simplify right side
    1,112.48x = 944,473.61
  5. Step 5: Solve for x
    x = 944,473.61/1,112.48
  6. Step 6: Final answer
    x = 848.98

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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.