Home / 2,378.89-3,282.83-1,330.95

Finding the Fourth Proportional to 2,378.89, 3,282.83 and 1,330.95

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Solution

The fourth proportional to 2,378.89, 3,282.83 and 1,330.95 is: 1,836.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378.89 : 3,282.83 = 1,330.95 : x
  2. Step 2: Convert to fraction form
    2,378.89/3,282.83 = 1,330.95/x
  3. Step 3: Cross multiply
    2,378.89x = 3,282.83 × 1,330.95
  4. Step 4: Simplify right side
    2,378.89x = 4,369,275.93
  5. Step 5: Solve for x
    x = 4,369,275.93/2,378.89
  6. Step 6: Final answer
    x = 1,836.69

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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.