Home / 1,591.92-2,385.36-1,227.60

Finding the Fourth Proportional to 1,591.92, 2,385.36 and 1,227.60

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Solution

The fourth proportional to 1,591.92, 2,385.36 and 1,227.60 is: 1,839.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,591.92 : 2,385.36 = 1,227.60 : x
  2. Step 2: Convert to fraction form
    1,591.92/2,385.36 = 1,227.60/x
  3. Step 3: Cross multiply
    1,591.92x = 2,385.36 × 1,227.60
  4. Step 4: Simplify right side
    1,591.92x = 2,928,267.94
  5. Step 5: Solve for x
    x = 2,928,267.94/1,591.92
  6. Step 6: Final answer
    x = 1,839.46

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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.