Home / 2,815.70-4,224.28-1,060.72

Finding the Fourth Proportional to 2,815.70, 4,224.28 and 1,060.72

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Solution

The fourth proportional to 2,815.70, 4,224.28 and 1,060.72 is: 1,591.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.70 : 4,224.28 = 1,060.72 : x
  2. Step 2: Convert to fraction form
    2,815.70/4,224.28 = 1,060.72/x
  3. Step 3: Cross multiply
    2,815.70x = 4,224.28 × 1,060.72
  4. Step 4: Simplify right side
    2,815.70x = 4,480,765.07
  5. Step 5: Solve for x
    x = 4,480,765.07/2,815.70
  6. Step 6: Final answer
    x = 1,591.35

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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.