Home / 3,966.19-5,475.40-2,709

Finding the Fourth Proportional to 3,966.19, 5,475.40 and 2,709

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Solution

The fourth proportional to 3,966.19, 5,475.40 and 2,709 is: 3,739.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,966.19 : 5,475.40 = 2,709 : x
  2. Step 2: Convert to fraction form
    3,966.19/5,475.40 = 2,709/x
  3. Step 3: Cross multiply
    3,966.19x = 5,475.40 × 2,709
  4. Step 4: Simplify right side
    3,966.19x = 14,832,851.83
  5. Step 5: Solve for x
    x = 14,832,851.83/3,966.19
  6. Step 6: Final answer
    x = 3,739.83

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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.