Home / 5,108.30-7,049.53-3,118.59

Finding the Fourth Proportional to 5,108.30, 7,049.53 and 3,118.59

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Solution

The fourth proportional to 5,108.30, 7,049.53 and 3,118.59 is: 4,303.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,108.30 : 7,049.53 = 3,118.59 : x
  2. Step 2: Convert to fraction form
    5,108.30/7,049.53 = 3,118.59/x
  3. Step 3: Cross multiply
    5,108.30x = 7,049.53 × 3,118.59
  4. Step 4: Simplify right side
    5,108.30x = 21,984,593.76
  5. Step 5: Solve for x
    x = 21,984,593.76/5,108.30
  6. Step 6: Final answer
    x = 4,303.70

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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.