Home / 3,065.16-4,230.52-1,947.40

Finding the Fourth Proportional to 3,065.16, 4,230.52 and 1,947.40

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Solution

The fourth proportional to 3,065.16, 4,230.52 and 1,947.40 is: 2,687.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,065.16 : 4,230.52 = 1,947.40 : x
  2. Step 2: Convert to fraction form
    3,065.16/4,230.52 = 1,947.40/x
  3. Step 3: Cross multiply
    3,065.16x = 4,230.52 × 1,947.40
  4. Step 4: Simplify right side
    3,065.16x = 8,238,514.65
  5. Step 5: Solve for x
    x = 8,238,514.65/3,065.16
  6. Step 6: Final answer
    x = 2,687.79

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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.