Home / 1,849.28-2,547.67-1,288.73

Finding the Fourth Proportional to 1,849.28, 2,547.67 and 1,288.73

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Solution

The fourth proportional to 1,849.28, 2,547.67 and 1,288.73 is: 1,775.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,849.28 : 2,547.67 = 1,288.73 : x
  2. Step 2: Convert to fraction form
    1,849.28/2,547.67 = 1,288.73/x
  3. Step 3: Cross multiply
    1,849.28x = 2,547.67 × 1,288.73
  4. Step 4: Simplify right side
    1,849.28x = 3,283,269.92
  5. Step 5: Solve for x
    x = 3,283,269.92/1,849.28
  6. Step 6: Final answer
    x = 1,775.43

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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.