Home / 5,118.15-7,663.34-4,487.67

Finding the Fourth Proportional to 5,118.15, 7,663.34 and 4,487.67

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Solution

The fourth proportional to 5,118.15, 7,663.34 and 4,487.67 is: 6,719.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.15 : 7,663.34 = 4,487.67 : x
  2. Step 2: Convert to fraction form
    5,118.15/7,663.34 = 4,487.67/x
  3. Step 3: Cross multiply
    5,118.15x = 7,663.34 × 4,487.67
  4. Step 4: Simplify right side
    5,118.15x = 34,390,552.24
  5. Step 5: Solve for x
    x = 34,390,552.24/5,118.15
  6. Step 6: Final answer
    x = 6,719.33

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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.