Home / 6,218.80-8,581.78-3,386.11

Finding the Fourth Proportional to 6,218.80, 8,581.78 and 3,386.11

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Solution

The fourth proportional to 6,218.80, 8,581.78 and 3,386.11 is: 4,672.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,218.80 : 8,581.78 = 3,386.11 : x
  2. Step 2: Convert to fraction form
    6,218.80/8,581.78 = 3,386.11/x
  3. Step 3: Cross multiply
    6,218.80x = 8,581.78 × 3,386.11
  4. Step 4: Simplify right side
    6,218.80x = 29,058,851.08
  5. Step 5: Solve for x
    x = 29,058,851.08/6,218.80
  6. Step 6: Final answer
    x = 4,672.74

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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.