Home / 6,811.29-9,400.08-4,159.20

Finding the Fourth Proportional to 6,811.29, 9,400.08 and 4,159.20

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Solution

The fourth proportional to 6,811.29, 9,400.08 and 4,159.20 is: 5,740.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,811.29 : 9,400.08 = 4,159.20 : x
  2. Step 2: Convert to fraction form
    6,811.29/9,400.08 = 4,159.20/x
  3. Step 3: Cross multiply
    6,811.29x = 9,400.08 × 4,159.20
  4. Step 4: Simplify right side
    6,811.29x = 39,096,775.61
  5. Step 5: Solve for x
    x = 39,096,775.61/6,811.29
  6. Step 6: Final answer
    x = 5,740.00

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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.