Home / 3,065.60-4,231.48-2,908.86

Finding the Fourth Proportional to 3,065.60, 4,231.48 and 2,908.86

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Solution

The fourth proportional to 3,065.60, 4,231.48 and 2,908.86 is: 4,015.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,065.60 : 4,231.48 = 2,908.86 : x
  2. Step 2: Convert to fraction form
    3,065.60/4,231.48 = 2,908.86/x
  3. Step 3: Cross multiply
    3,065.60x = 4,231.48 × 2,908.86
  4. Step 4: Simplify right side
    3,065.60x = 12,308,782.91
  5. Step 5: Solve for x
    x = 12,308,782.91/3,065.60
  6. Step 6: Final answer
    x = 4,015.13

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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.