Home / 7,108.42-9,809.47-4,124.55

Finding the Fourth Proportional to 7,108.42, 9,809.47 and 4,124.55

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Solution

The fourth proportional to 7,108.42, 9,809.47 and 4,124.55 is: 5,691.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,108.42 : 9,809.47 = 4,124.55 : x
  2. Step 2: Convert to fraction form
    7,108.42/9,809.47 = 4,124.55/x
  3. Step 3: Cross multiply
    7,108.42x = 9,809.47 × 4,124.55
  4. Step 4: Simplify right side
    7,108.42x = 40,459,649.49
  5. Step 5: Solve for x
    x = 40,459,649.49/7,108.42
  6. Step 6: Final answer
    x = 5,691.79

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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.