Home / 1,426.80-1,954.20-1,342.73

Finding the Fourth Proportional to 1,426.80, 1,954.20 and 1,342.73

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Solution

The fourth proportional to 1,426.80, 1,954.20 and 1,342.73 is: 1,839.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426.80 : 1,954.20 = 1,342.73 : x
  2. Step 2: Convert to fraction form
    1,426.80/1,954.20 = 1,342.73/x
  3. Step 3: Cross multiply
    1,426.80x = 1,954.20 × 1,342.73
  4. Step 4: Simplify right side
    1,426.80x = 2,623,953.20
  5. Step 5: Solve for x
    x = 2,623,953.20/1,426.80
  6. Step 6: Final answer
    x = 1,839.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.