Home / 2,522.91-3,481.70-1,578.40

Finding the Fourth Proportional to 2,522.91, 3,481.70 and 1,578.40

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Solution

The fourth proportional to 2,522.91, 3,481.70 and 1,578.40 is: 2,178.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,522.91 : 3,481.70 = 1,578.40 : x
  2. Step 2: Convert to fraction form
    2,522.91/3,481.70 = 1,578.40/x
  3. Step 3: Cross multiply
    2,522.91x = 3,481.70 × 1,578.40
  4. Step 4: Simplify right side
    2,522.91x = 5,495,523.98
  5. Step 5: Solve for x
    x = 5,495,523.98/2,522.91
  6. Step 6: Final answer
    x = 2,178.25

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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.