Home / 2,865.12-4,298.76-1,895.28

Finding the Fourth Proportional to 2,865.12, 4,298.76 and 1,895.28

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Solution

The fourth proportional to 2,865.12, 4,298.76 and 1,895.28 is: 2,843.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,865.12 : 4,298.76 = 1,895.28 : x
  2. Step 2: Convert to fraction form
    2,865.12/4,298.76 = 1,895.28/x
  3. Step 3: Cross multiply
    2,865.12x = 4,298.76 × 1,895.28
  4. Step 4: Simplify right side
    2,865.12x = 8,147,353.85
  5. Step 5: Solve for x
    x = 8,147,353.85/2,865.12
  6. Step 6: Final answer
    x = 2,843.63

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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.