Home / 2,991.24-4,487.58-1,260

Finding the Fourth Proportional to 2,991.24, 4,487.58 and 1,260

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Solution

The fourth proportional to 2,991.24, 4,487.58 and 1,260 is: 1,890.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991.24 : 4,487.58 = 1,260 : x
  2. Step 2: Convert to fraction form
    2,991.24/4,487.58 = 1,260/x
  3. Step 3: Cross multiply
    2,991.24x = 4,487.58 × 1,260
  4. Step 4: Simplify right side
    2,991.24x = 5,654,350.80
  5. Step 5: Solve for x
    x = 5,654,350.80/2,991.24
  6. Step 6: Final answer
    x = 1,890.30

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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.