Home / 3,162.80-4,365.65-2,114.86

Finding the Fourth Proportional to 3,162.80, 4,365.65 and 2,114.86

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Solution

The fourth proportional to 3,162.80, 4,365.65 and 2,114.86 is: 2,919.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,162.80 : 4,365.65 = 2,114.86 : x
  2. Step 2: Convert to fraction form
    3,162.80/4,365.65 = 2,114.86/x
  3. Step 3: Cross multiply
    3,162.80x = 4,365.65 × 2,114.86
  4. Step 4: Simplify right side
    3,162.80x = 9,232,729.22
  5. Step 5: Solve for x
    x = 9,232,729.22/3,162.80
  6. Step 6: Final answer
    x = 2,919.17

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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.