Home / 7,811.41-11,718.33-2,545.18

Finding the Fourth Proportional to 7,811.41, 11,718.33 and 2,545.18

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Solution

The fourth proportional to 7,811.41, 11,718.33 and 2,545.18 is: 3,818.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,811.41 : 11,718.33 = 2,545.18 : x
  2. Step 2: Convert to fraction form
    7,811.41/11,718.33 = 2,545.18/x
  3. Step 3: Cross multiply
    7,811.41x = 11,718.33 × 2,545.18
  4. Step 4: Simplify right side
    7,811.41x = 29,825,259.15
  5. Step 5: Solve for x
    x = 29,825,259.15/7,811.41
  6. Step 6: Final answer
    x = 3,818.17

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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.