Home / 1,472.11-2,031.51-882.64

Finding the Fourth Proportional to 1,472.11, 2,031.51 and 882.64

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Solution

The fourth proportional to 1,472.11, 2,031.51 and 882.64 is: 1,218.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,472.11 : 2,031.51 = 882.64 : x
  2. Step 2: Convert to fraction form
    1,472.11/2,031.51 = 882.64/x
  3. Step 3: Cross multiply
    1,472.11x = 2,031.51 × 882.64
  4. Step 4: Simplify right side
    1,472.11x = 1,793,091.99
  5. Step 5: Solve for x
    x = 1,793,091.99/1,472.11
  6. Step 6: Final answer
    x = 1,218.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.