Home / 2,560.65-3,836.91-1,864.13

Finding the Fourth Proportional to 2,560.65, 3,836.91 and 1,864.13

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Solution

The fourth proportional to 2,560.65, 3,836.91 and 1,864.13 is: 2,793.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,560.65 : 3,836.91 = 1,864.13 : x
  2. Step 2: Convert to fraction form
    2,560.65/3,836.91 = 1,864.13/x
  3. Step 3: Cross multiply
    2,560.65x = 3,836.91 × 1,864.13
  4. Step 4: Simplify right side
    2,560.65x = 7,152,479.85
  5. Step 5: Solve for x
    x = 7,152,479.85/2,560.65
  6. Step 6: Final answer
    x = 2,793.23

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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.