Home / 7,717.60-11,576.40-2,171.13

Finding the Fourth Proportional to 7,717.60, 11,576.40 and 2,171.13

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Solution

The fourth proportional to 7,717.60, 11,576.40 and 2,171.13 is: 3,256.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,717.60 : 11,576.40 = 2,171.13 : x
  2. Step 2: Convert to fraction form
    7,717.60/11,576.40 = 2,171.13/x
  3. Step 3: Cross multiply
    7,717.60x = 11,576.40 × 2,171.13
  4. Step 4: Simplify right side
    7,717.60x = 25,133,869.33
  5. Step 5: Solve for x
    x = 25,133,869.33/7,717.60
  6. Step 6: Final answer
    x = 3,256.70

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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.