Home / 7,788.76-11,681.39-2,240.87

Finding the Fourth Proportional to 7,788.76, 11,681.39 and 2,240.87

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Solution

The fourth proportional to 7,788.76, 11,681.39 and 2,240.87 is: 3,360.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,788.76 : 11,681.39 = 2,240.87 : x
  2. Step 2: Convert to fraction form
    7,788.76/11,681.39 = 2,240.87/x
  3. Step 3: Cross multiply
    7,788.76x = 11,681.39 × 2,240.87
  4. Step 4: Simplify right side
    7,788.76x = 26,176,417.30
  5. Step 5: Solve for x
    x = 26,176,417.30/7,788.76
  6. Step 6: Final answer
    x = 3,360.80

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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.