Home / 2,275.28-3,408.32-1,570.76

Finding the Fourth Proportional to 2,275.28, 3,408.32 and 1,570.76

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Solution

The fourth proportional to 2,275.28, 3,408.32 and 1,570.76 is: 2,352.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,275.28 : 3,408.32 = 1,570.76 : x
  2. Step 2: Convert to fraction form
    2,275.28/3,408.32 = 1,570.76/x
  3. Step 3: Cross multiply
    2,275.28x = 3,408.32 × 1,570.76
  4. Step 4: Simplify right side
    2,275.28x = 5,353,635.68
  5. Step 5: Solve for x
    x = 5,353,635.68/2,275.28
  6. Step 6: Final answer
    x = 2,352.96

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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.