Home / 3,977.15-5,966.19-1,308.65

Finding the Fourth Proportional to 3,977.15, 5,966.19 and 1,308.65

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Solution

The fourth proportional to 3,977.15, 5,966.19 and 1,308.65 is: 1,963.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.15 : 5,966.19 = 1,308.65 : x
  2. Step 2: Convert to fraction form
    3,977.15/5,966.19 = 1,308.65/x
  3. Step 3: Cross multiply
    3,977.15x = 5,966.19 × 1,308.65
  4. Step 4: Simplify right side
    3,977.15x = 7,807,624.71
  5. Step 5: Solve for x
    x = 7,807,624.71/3,977.15
  6. Step 6: Final answer
    x = 1,963.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.