Home / 1,591.45-2,386.77-495.25

Finding the Fourth Proportional to 1,591.45, 2,386.77 and 495.25

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Solution

The fourth proportional to 1,591.45, 2,386.77 and 495.25 is: 742.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,591.45 : 2,386.77 = 495.25 : x
  2. Step 2: Convert to fraction form
    1,591.45/2,386.77 = 495.25/x
  3. Step 3: Cross multiply
    1,591.45x = 2,386.77 × 495.25
  4. Step 4: Simplify right side
    1,591.45x = 1,182,048.97
  5. Step 5: Solve for x
    x = 1,182,048.97/1,591.45
  6. Step 6: Final answer
    x = 742.75

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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.