Home / 7,108.47-9,809.82-4,125.96

Finding the Fourth Proportional to 7,108.47, 9,809.82 and 4,125.96

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Solution

The fourth proportional to 7,108.47, 9,809.82 and 4,125.96 is: 5,693.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,108.47 : 9,809.82 = 4,125.96 : x
  2. Step 2: Convert to fraction form
    7,108.47/9,809.82 = 4,125.96/x
  3. Step 3: Cross multiply
    7,108.47x = 9,809.82 × 4,125.96
  4. Step 4: Simplify right side
    7,108.47x = 40,474,924.93
  5. Step 5: Solve for x
    x = 40,474,924.93/7,108.47
  6. Step 6: Final answer
    x = 5,693.90

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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.