Home / 2,591.60-3,578.48-2,001.11

Finding the Fourth Proportional to 2,591.60, 3,578.48 and 2,001.11

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Solution

The fourth proportional to 2,591.60, 3,578.48 and 2,001.11 is: 2,763.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,591.60 : 3,578.48 = 2,001.11 : x
  2. Step 2: Convert to fraction form
    2,591.60/3,578.48 = 2,001.11/x
  3. Step 3: Cross multiply
    2,591.60x = 3,578.48 × 2,001.11
  4. Step 4: Simplify right side
    2,591.60x = 7,160,911.72
  5. Step 5: Solve for x
    x = 7,160,911.72/2,591.60
  6. Step 6: Final answer
    x = 2,763.13

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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.