Home / 1,944.11-2,913.28-1,428.59

Finding the Fourth Proportional to 1,944.11, 2,913.28 and 1,428.59

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Solution

The fourth proportional to 1,944.11, 2,913.28 and 1,428.59 is: 2,140.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,944.11 : 2,913.28 = 1,428.59 : x
  2. Step 2: Convert to fraction form
    1,944.11/2,913.28 = 1,428.59/x
  3. Step 3: Cross multiply
    1,944.11x = 2,913.28 × 1,428.59
  4. Step 4: Simplify right side
    1,944.11x = 4,161,886.39
  5. Step 5: Solve for x
    x = 4,161,886.39/1,944.11
  6. Step 6: Final answer
    x = 2,140.76

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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.