Home / 1,983.71-2,736.28-1,276.48

Finding the Fourth Proportional to 1,983.71, 2,736.28 and 1,276.48

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Solution

The fourth proportional to 1,983.71, 2,736.28 and 1,276.48 is: 1,760.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,983.71 : 2,736.28 = 1,276.48 : x
  2. Step 2: Convert to fraction form
    1,983.71/2,736.28 = 1,276.48/x
  3. Step 3: Cross multiply
    1,983.71x = 2,736.28 × 1,276.48
  4. Step 4: Simplify right side
    1,983.71x = 3,492,808.50
  5. Step 5: Solve for x
    x = 3,492,808.50/1,983.71
  6. Step 6: Final answer
    x = 1,760.74

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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.