Home / 2,666.40-3,676.32-2,001.12

Finding the Fourth Proportional to 2,666.40, 3,676.32 and 2,001.12

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Solution

The fourth proportional to 2,666.40, 3,676.32 and 2,001.12 is: 2,759.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666.40 : 3,676.32 = 2,001.12 : x
  2. Step 2: Convert to fraction form
    2,666.40/3,676.32 = 2,001.12/x
  3. Step 3: Cross multiply
    2,666.40x = 3,676.32 × 2,001.12
  4. Step 4: Simplify right side
    2,666.40x = 7,356,757.48
  5. Step 5: Solve for x
    x = 7,356,757.48/2,666.40
  6. Step 6: Final answer
    x = 2,759.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.