Home / 2,747.86-4,124.53-1,288.06

Finding the Fourth Proportional to 2,747.86, 4,124.53 and 1,288.06

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Solution

The fourth proportional to 2,747.86, 4,124.53 and 1,288.06 is: 1,933.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,747.86 : 4,124.53 = 1,288.06 : x
  2. Step 2: Convert to fraction form
    2,747.86/4,124.53 = 1,288.06/x
  3. Step 3: Cross multiply
    2,747.86x = 4,124.53 × 1,288.06
  4. Step 4: Simplify right side
    2,747.86x = 5,312,642.11
  5. Step 5: Solve for x
    x = 5,312,642.11/2,747.86
  6. Step 6: Final answer
    x = 1,933.37

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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.