Home / 2,001.08-2,997.78-1,315

Finding the Fourth Proportional to 2,001.08, 2,997.78 and 1,315

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Solution

The fourth proportional to 2,001.08, 2,997.78 and 1,315 is: 1,969.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,001.08 : 2,997.78 = 1,315 : x
  2. Step 2: Convert to fraction form
    2,001.08/2,997.78 = 1,315/x
  3. Step 3: Cross multiply
    2,001.08x = 2,997.78 × 1,315
  4. Step 4: Simplify right side
    2,001.08x = 3,942,080.70
  5. Step 5: Solve for x
    x = 3,942,080.70/2,001.08
  6. Step 6: Final answer
    x = 1,969.98

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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.