Home / 5,426.61-8,139.85-4,118.39

Finding the Fourth Proportional to 5,426.61, 8,139.85 and 4,118.39

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Solution

The fourth proportional to 5,426.61, 8,139.85 and 4,118.39 is: 6,177.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426.61 : 8,139.85 = 4,118.39 : x
  2. Step 2: Convert to fraction form
    5,426.61/8,139.85 = 4,118.39/x
  3. Step 3: Cross multiply
    5,426.61x = 8,139.85 × 4,118.39
  4. Step 4: Simplify right side
    5,426.61x = 33,523,076.84
  5. Step 5: Solve for x
    x = 33,523,076.84/5,426.61
  6. Step 6: Final answer
    x = 6,177.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.