Home / 2,126.18-3,188.91-587.18

Finding the Fourth Proportional to 2,126.18, 3,188.91 and 587.18

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Solution

The fourth proportional to 2,126.18, 3,188.91 and 587.18 is: 880.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.18 : 3,188.91 = 587.18 : x
  2. Step 2: Convert to fraction form
    2,126.18/3,188.91 = 587.18/x
  3. Step 3: Cross multiply
    2,126.18x = 3,188.91 × 587.18
  4. Step 4: Simplify right side
    2,126.18x = 1,872,464.17
  5. Step 5: Solve for x
    x = 1,872,464.17/2,126.18
  6. Step 6: Final answer
    x = 880.67

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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.