Home / 1,591.18-2,386.19-495.18

Finding the Fourth Proportional to 1,591.18, 2,386.19 and 495.18

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Solution

The fourth proportional to 1,591.18, 2,386.19 and 495.18 is: 742.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,591.18 : 2,386.19 = 495.18 : x
  2. Step 2: Convert to fraction form
    1,591.18/2,386.19 = 495.18/x
  3. Step 3: Cross multiply
    1,591.18x = 2,386.19 × 495.18
  4. Step 4: Simplify right side
    1,591.18x = 1,181,594.80
  5. Step 5: Solve for x
    x = 1,181,594.80/1,591.18
  6. Step 6: Final answer
    x = 742.59

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.