Home / 2,378.85-3,282.75-1,316.66

Finding the Fourth Proportional to 2,378.85, 3,282.75 and 1,316.66

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Solution

The fourth proportional to 2,378.85, 3,282.75 and 1,316.66 is: 1,816.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378.85 : 3,282.75 = 1,316.66 : x
  2. Step 2: Convert to fraction form
    2,378.85/3,282.75 = 1,316.66/x
  3. Step 3: Cross multiply
    2,378.85x = 3,282.75 × 1,316.66
  4. Step 4: Simplify right side
    2,378.85x = 4,322,255.34
  5. Step 5: Solve for x
    x = 4,322,255.34/2,378.85
  6. Step 6: Final answer
    x = 1,816.95

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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.