Home / 1,926.97-2,659.20-1,042.75

Finding the Fourth Proportional to 1,926.97, 2,659.20 and 1,042.75

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Solution

The fourth proportional to 1,926.97, 2,659.20 and 1,042.75 is: 1,438.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,926.97 : 2,659.20 = 1,042.75 : x
  2. Step 2: Convert to fraction form
    1,926.97/2,659.20 = 1,042.75/x
  3. Step 3: Cross multiply
    1,926.97x = 2,659.20 × 1,042.75
  4. Step 4: Simplify right side
    1,926.97x = 2,772,880.21
  5. Step 5: Solve for x
    x = 2,772,880.21/1,926.97
  6. Step 6: Final answer
    x = 1,438.99

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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.