Home / 1,943.40-2,682.46-1,322.76

Finding the Fourth Proportional to 1,943.40, 2,682.46 and 1,322.76

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Solution

The fourth proportional to 1,943.40, 2,682.46 and 1,322.76 is: 1,825.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943.40 : 2,682.46 = 1,322.76 : x
  2. Step 2: Convert to fraction form
    1,943.40/2,682.46 = 1,322.76/x
  3. Step 3: Cross multiply
    1,943.40x = 2,682.46 × 1,322.76
  4. Step 4: Simplify right side
    1,943.40x = 3,548,250.79
  5. Step 5: Solve for x
    x = 3,548,250.79/1,943.40
  6. Step 6: Final answer
    x = 1,825.80

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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.