Home / 1,427.65-2,143.60-882.11

Finding the Fourth Proportional to 1,427.65, 2,143.60 and 882.11

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Solution

The fourth proportional to 1,427.65, 2,143.60 and 882.11 is: 1,324.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427.65 : 2,143.60 = 882.11 : x
  2. Step 2: Convert to fraction form
    1,427.65/2,143.60 = 882.11/x
  3. Step 3: Cross multiply
    1,427.65x = 2,143.60 × 882.11
  4. Step 4: Simplify right side
    1,427.65x = 1,890,894.15
  5. Step 5: Solve for x
    x = 1,890,894.15/1,427.65
  6. Step 6: Final answer
    x = 1,324.48

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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.