Home / 2,824.24-4,236.42-1,987.88

Finding the Fourth Proportional to 2,824.24, 4,236.42 and 1,987.88

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Solution

The fourth proportional to 2,824.24, 4,236.42 and 1,987.88 is: 2,981.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,824.24 : 4,236.42 = 1,987.88 : x
  2. Step 2: Convert to fraction form
    2,824.24/4,236.42 = 1,987.88/x
  3. Step 3: Cross multiply
    2,824.24x = 4,236.42 × 1,987.88
  4. Step 4: Simplify right side
    2,824.24x = 8,421,484.65
  5. Step 5: Solve for x
    x = 8,421,484.65/2,824.24
  6. Step 6: Final answer
    x = 2,981.86

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1.5x scale

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.