Home / 3,867.34-5,337.18-2,188.11

Finding the Fourth Proportional to 3,867.34, 5,337.18 and 2,188.11

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Solution

The fourth proportional to 3,867.34, 5,337.18 and 2,188.11 is: 3,019.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.34 : 5,337.18 = 2,188.11 : x
  2. Step 2: Convert to fraction form
    3,867.34/5,337.18 = 2,188.11/x
  3. Step 3: Cross multiply
    3,867.34x = 5,337.18 × 2,188.11
  4. Step 4: Simplify right side
    3,867.34x = 11,678,325.99
  5. Step 5: Solve for x
    x = 11,678,325.99/3,867.34
  6. Step 6: Final answer
    x = 3,019.73

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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.