Home / 5,227.23-7,209.81-3,312.39

Finding the Fourth Proportional to 5,227.23, 7,209.81 and 3,312.39

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Solution

The fourth proportional to 5,227.23, 7,209.81 and 3,312.39 is: 4,568.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,227.23 : 7,209.81 = 3,312.39 : x
  2. Step 2: Convert to fraction form
    5,227.23/7,209.81 = 3,312.39/x
  3. Step 3: Cross multiply
    5,227.23x = 7,209.81 × 3,312.39
  4. Step 4: Simplify right side
    5,227.23x = 23,881,729.58
  5. Step 5: Solve for x
    x = 23,881,729.58/5,227.23
  6. Step 6: Final answer
    x = 4,568.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.