Home / 7,126.22-10,689.33-1,931.96

Finding the Fourth Proportional to 7,126.22, 10,689.33 and 1,931.96

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Solution

The fourth proportional to 7,126.22, 10,689.33 and 1,931.96 is: 2,897.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,126.22 : 10,689.33 = 1,931.96 : x
  2. Step 2: Convert to fraction form
    7,126.22/10,689.33 = 1,931.96/x
  3. Step 3: Cross multiply
    7,126.22x = 10,689.33 × 1,931.96
  4. Step 4: Simplify right side
    7,126.22x = 20,651,357.99
  5. Step 5: Solve for x
    x = 20,651,357.99/7,126.22
  6. Step 6: Final answer
    x = 2,897.94

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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.