Home / 2,836.39-4,254.59-1,678.63

Finding the Fourth Proportional to 2,836.39, 4,254.59 and 1,678.63

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Solution

The fourth proportional to 2,836.39, 4,254.59 and 1,678.63 is: 2,517.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,836.39 : 4,254.59 = 1,678.63 : x
  2. Step 2: Convert to fraction form
    2,836.39/4,254.59 = 1,678.63/x
  3. Step 3: Cross multiply
    2,836.39x = 4,254.59 × 1,678.63
  4. Step 4: Simplify right side
    2,836.39x = 7,141,882.41
  5. Step 5: Solve for x
    x = 7,141,882.41/2,836.39
  6. Step 6: Final answer
    x = 2,517.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.