Home / 6,111.28-8,433.80-3,385.87

Finding the Fourth Proportional to 6,111.28, 8,433.80 and 3,385.87

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Solution

The fourth proportional to 6,111.28, 8,433.80 and 3,385.87 is: 4,672.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,111.28 : 8,433.80 = 3,385.87 : x
  2. Step 2: Convert to fraction form
    6,111.28/8,433.80 = 3,385.87/x
  3. Step 3: Cross multiply
    6,111.28x = 8,433.80 × 3,385.87
  4. Step 4: Simplify right side
    6,111.28x = 28,555,750.41
  5. Step 5: Solve for x
    x = 28,555,750.41/6,111.28
  6. Step 6: Final answer
    x = 4,672.63

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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.