Home / 2,800.83-4,202.45-1,158.57

Finding the Fourth Proportional to 2,800.83, 4,202.45 and 1,158.57

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Solution

The fourth proportional to 2,800.83, 4,202.45 and 1,158.57 is: 1,738.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,800.83 : 4,202.45 = 1,158.57 : x
  2. Step 2: Convert to fraction form
    2,800.83/4,202.45 = 1,158.57/x
  3. Step 3: Cross multiply
    2,800.83x = 4,202.45 × 1,158.57
  4. Step 4: Simplify right side
    2,800.83x = 4,868,826.70
  5. Step 5: Solve for x
    x = 4,868,826.70/2,800.83
  6. Step 6: Final answer
    x = 1,738.35

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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.