Home / 7,108.15-9,806.08-4,122.26

Finding the Fourth Proportional to 7,108.15, 9,806.08 and 4,122.26

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Solution

The fourth proportional to 7,108.15, 9,806.08 and 4,122.26 is: 5,686.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,108.15 : 9,806.08 = 4,122.26 : x
  2. Step 2: Convert to fraction form
    7,108.15/9,806.08 = 4,122.26/x
  3. Step 3: Cross multiply
    7,108.15x = 9,806.08 × 4,122.26
  4. Step 4: Simplify right side
    7,108.15x = 40,423,181.67
  5. Step 5: Solve for x
    x = 40,423,181.67/7,108.15
  6. Step 6: Final answer
    x = 5,686.88

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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.