Home / 2,256.18-3,378.48-1,561.86

Finding the Fourth Proportional to 2,256.18, 3,378.48 and 1,561.86

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Solution

The fourth proportional to 2,256.18, 3,378.48 and 1,561.86 is: 2,338.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,256.18 : 3,378.48 = 1,561.86 : x
  2. Step 2: Convert to fraction form
    2,256.18/3,378.48 = 1,561.86/x
  3. Step 3: Cross multiply
    2,256.18x = 3,378.48 × 1,561.86
  4. Step 4: Simplify right side
    2,256.18x = 5,276,712.77
  5. Step 5: Solve for x
    x = 5,276,712.77/2,256.18
  6. Step 6: Final answer
    x = 2,338.78

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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.