Home / 3,187.24-4,780.81-1,543.93

Finding the Fourth Proportional to 3,187.24, 4,780.81 and 1,543.93

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Solution

The fourth proportional to 3,187.24, 4,780.81 and 1,543.93 is: 2,315.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.24 : 4,780.81 = 1,543.93 : x
  2. Step 2: Convert to fraction form
    3,187.24/4,780.81 = 1,543.93/x
  3. Step 3: Cross multiply
    3,187.24x = 4,780.81 × 1,543.93
  4. Step 4: Simplify right side
    3,187.24x = 7,381,235.98
  5. Step 5: Solve for x
    x = 7,381,235.98/3,187.24
  6. Step 6: Final answer
    x = 2,315.87

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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.