Home / 5,255.92-7,880.84-2,618.07

Finding the Fourth Proportional to 5,255.92, 7,880.84 and 2,618.07

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Solution

The fourth proportional to 5,255.92, 7,880.84 and 2,618.07 is: 3,925.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,255.92 : 7,880.84 = 2,618.07 : x
  2. Step 2: Convert to fraction form
    5,255.92/7,880.84 = 2,618.07/x
  3. Step 3: Cross multiply
    5,255.92x = 7,880.84 × 2,618.07
  4. Step 4: Simplify right side
    5,255.92x = 20,632,590.78
  5. Step 5: Solve for x
    x = 20,632,590.78/5,255.92
  6. Step 6: Final answer
    x = 3,925.59

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1.5x scale

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.