Home / 7,126.89-9,835.29-3,983.28

Finding the Fourth Proportional to 7,126.89, 9,835.29 and 3,983.28

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Solution

The fourth proportional to 7,126.89, 9,835.29 and 3,983.28 is: 5,497.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,126.89 : 9,835.29 = 3,983.28 : x
  2. Step 2: Convert to fraction form
    7,126.89/9,835.29 = 3,983.28/x
  3. Step 3: Cross multiply
    7,126.89x = 9,835.29 × 3,983.28
  4. Step 4: Simplify right side
    7,126.89x = 39,176,713.95
  5. Step 5: Solve for x
    x = 39,176,713.95/7,126.89
  6. Step 6: Final answer
    x = 5,497.03

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1.5x scale

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.