Home / 1,571.20-2,167.42-1,073.84

Finding the Fourth Proportional to 1,571.20, 2,167.42 and 1,073.84

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Solution

The fourth proportional to 1,571.20, 2,167.42 and 1,073.84 is: 1,481.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,571.20 : 2,167.42 = 1,073.84 : x
  2. Step 2: Convert to fraction form
    1,571.20/2,167.42 = 1,073.84/x
  3. Step 3: Cross multiply
    1,571.20x = 2,167.42 × 1,073.84
  4. Step 4: Simplify right side
    1,571.20x = 2,327,462.29
  5. Step 5: Solve for x
    x = 2,327,462.29/1,571.20
  6. Step 6: Final answer
    x = 1,481.33

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1.5x scale

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.