Home / 1,591.24-2,386.86-495.49

Finding the Fourth Proportional to 1,591.24, 2,386.86 and 495.49

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Solution

The fourth proportional to 1,591.24, 2,386.86 and 495.49 is: 743.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,591.24 : 2,386.86 = 495.49 : x
  2. Step 2: Convert to fraction form
    1,591.24/2,386.86 = 495.49/x
  3. Step 3: Cross multiply
    1,591.24x = 2,386.86 × 495.49
  4. Step 4: Simplify right side
    1,591.24x = 1,182,665.26
  5. Step 5: Solve for x
    x = 1,182,665.26/1,591.24
  6. Step 6: Final answer
    x = 743.24

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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.