Home / 7,719.60-11,576.97-2,788.59

Finding the Fourth Proportional to 7,719.60, 11,576.97 and 2,788.59

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Solution

The fourth proportional to 7,719.60, 11,576.97 and 2,788.59 is: 4,182.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,719.60 : 11,576.97 = 2,788.59 : x
  2. Step 2: Convert to fraction form
    7,719.60/11,576.97 = 2,788.59/x
  3. Step 3: Cross multiply
    7,719.60x = 11,576.97 × 2,788.59
  4. Step 4: Simplify right side
    7,719.60x = 32,283,422.77
  5. Step 5: Solve for x
    x = 32,283,422.77/7,719.60
  6. Step 6: Final answer
    x = 4,182.01

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1.5x scale

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.