Home / 2,887.56-4,328.08-1,427.72

Finding the Fourth Proportional to 2,887.56, 4,328.08 and 1,427.72

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Solution

The fourth proportional to 2,887.56, 4,328.08 and 1,427.72 is: 2,139.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.56 : 4,328.08 = 1,427.72 : x
  2. Step 2: Convert to fraction form
    2,887.56/4,328.08 = 1,427.72/x
  3. Step 3: Cross multiply
    2,887.56x = 4,328.08 × 1,427.72
  4. Step 4: Simplify right side
    2,887.56x = 6,179,286.38
  5. Step 5: Solve for x
    x = 6,179,286.38/2,887.56
  6. Step 6: Final answer
    x = 2,139.97

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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.