Home / 7,127.44-10,689.72-1,932.08

Finding the Fourth Proportional to 7,127.44, 10,689.72 and 1,932.08

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Solution

The fourth proportional to 7,127.44, 10,689.72 and 1,932.08 is: 2,897.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.44 : 10,689.72 = 1,932.08 : x
  2. Step 2: Convert to fraction form
    7,127.44/10,689.72 = 1,932.08/x
  3. Step 3: Cross multiply
    7,127.44x = 10,689.72 × 1,932.08
  4. Step 4: Simplify right side
    7,127.44x = 20,653,394.22
  5. Step 5: Solve for x
    x = 20,653,394.22/7,127.44
  6. Step 6: Final answer
    x = 2,897.73

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1.5x scale

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.