Home / 6,215.11-8,576.17-3,420.07

Finding the Fourth Proportional to 6,215.11, 8,576.17 and 3,420.07

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Solution

The fourth proportional to 6,215.11, 8,576.17 and 3,420.07 is: 4,719.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,215.11 : 8,576.17 = 3,420.07 : x
  2. Step 2: Convert to fraction form
    6,215.11/8,576.17 = 3,420.07/x
  3. Step 3: Cross multiply
    6,215.11x = 8,576.17 × 3,420.07
  4. Step 4: Simplify right side
    6,215.11x = 29,331,101.73
  5. Step 5: Solve for x
    x = 29,331,101.73/6,215.11
  6. Step 6: Final answer
    x = 4,719.32

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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.