Home / 1,085.28-1,497.35-613.11

Finding the Fourth Proportional to 1,085.28, 1,497.35 and 613.11

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Solution

The fourth proportional to 1,085.28, 1,497.35 and 613.11 is: 845.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085.28 : 1,497.35 = 613.11 : x
  2. Step 2: Convert to fraction form
    1,085.28/1,497.35 = 613.11/x
  3. Step 3: Cross multiply
    1,085.28x = 1,497.35 × 613.11
  4. Step 4: Simplify right side
    1,085.28x = 918,047.41
  5. Step 5: Solve for x
    x = 918,047.41/1,085.28
  6. Step 6: Final answer
    x = 845.91

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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.