Home / 2,330.86-3,216.56-1,282.90

Finding the Fourth Proportional to 2,330.86, 3,216.56 and 1,282.90

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Solution

The fourth proportional to 2,330.86, 3,216.56 and 1,282.90 is: 1,770.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,330.86 : 3,216.56 = 1,282.90 : x
  2. Step 2: Convert to fraction form
    2,330.86/3,216.56 = 1,282.90/x
  3. Step 3: Cross multiply
    2,330.86x = 3,216.56 × 1,282.90
  4. Step 4: Simplify right side
    2,330.86x = 4,126,524.82
  5. Step 5: Solve for x
    x = 4,126,524.82/2,330.86
  6. Step 6: Final answer
    x = 1,770.39

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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.