Home / 2,763.90-4,166.55-2,580.57

Finding the Fourth Proportional to 2,763.90, 4,166.55 and 2,580.57

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Solution

The fourth proportional to 2,763.90, 4,166.55 and 2,580.57 is: 3,890.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,763.90 : 4,166.55 = 2,580.57 : x
  2. Step 2: Convert to fraction form
    2,763.90/4,166.55 = 2,580.57/x
  3. Step 3: Cross multiply
    2,763.90x = 4,166.55 × 2,580.57
  4. Step 4: Simplify right side
    2,763.90x = 10,752,073.93
  5. Step 5: Solve for x
    x = 10,752,073.93/2,763.90
  6. Step 6: Final answer
    x = 3,890.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.