Home / 4,565.78-6,847.62-1,279.20

Finding the Fourth Proportional to 4,565.78, 6,847.62 and 1,279.20

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Solution

The fourth proportional to 4,565.78, 6,847.62 and 1,279.20 is: 1,918.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,565.78 : 6,847.62 = 1,279.20 : x
  2. Step 2: Convert to fraction form
    4,565.78/6,847.62 = 1,279.20/x
  3. Step 3: Cross multiply
    4,565.78x = 6,847.62 × 1,279.20
  4. Step 4: Simplify right side
    4,565.78x = 8,759,496.39
  5. Step 5: Solve for x
    x = 8,759,496.39/4,565.78
  6. Step 6: Final answer
    x = 1,918.51

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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.