Home / 5,656.59-7,806.14-3,138.87

Finding the Fourth Proportional to 5,656.59, 7,806.14 and 3,138.87

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Solution

The fourth proportional to 5,656.59, 7,806.14 and 3,138.87 is: 4,331.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,656.59 : 7,806.14 = 3,138.87 : x
  2. Step 2: Convert to fraction form
    5,656.59/7,806.14 = 3,138.87/x
  3. Step 3: Cross multiply
    5,656.59x = 7,806.14 × 3,138.87
  4. Step 4: Simplify right side
    5,656.59x = 24,502,458.66
  5. Step 5: Solve for x
    x = 24,502,458.66/5,656.59
  6. Step 6: Final answer
    x = 4,331.67

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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.