Home / 4,856.42-7,278.55-2,079.86

Finding the Fourth Proportional to 4,856.42, 7,278.55 and 2,079.86

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Solution

The fourth proportional to 4,856.42, 7,278.55 and 2,079.86 is: 3,117.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,856.42 : 7,278.55 = 2,079.86 : x
  2. Step 2: Convert to fraction form
    4,856.42/7,278.55 = 2,079.86/x
  3. Step 3: Cross multiply
    4,856.42x = 7,278.55 × 2,079.86
  4. Step 4: Simplify right side
    4,856.42x = 15,138,365.00
  5. Step 5: Solve for x
    x = 15,138,365.00/4,856.42
  6. Step 6: Final answer
    x = 3,117.19

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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.