Home / 2,987.96-4,478.24-1,037.88

Finding the Fourth Proportional to 2,987.96, 4,478.24 and 1,037.88

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Solution

The fourth proportional to 2,987.96, 4,478.24 and 1,037.88 is: 1,555.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987.96 : 4,478.24 = 1,037.88 : x
  2. Step 2: Convert to fraction form
    2,987.96/4,478.24 = 1,037.88/x
  3. Step 3: Cross multiply
    2,987.96x = 4,478.24 × 1,037.88
  4. Step 4: Simplify right side
    2,987.96x = 4,647,875.73
  5. Step 5: Solve for x
    x = 4,647,875.73/2,987.96
  6. Step 6: Final answer
    x = 1,555.53

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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.