Home / 6,223.12-8,587.87-3,390.49

Finding the Fourth Proportional to 6,223.12, 8,587.87 and 3,390.49

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Solution

The fourth proportional to 6,223.12, 8,587.87 and 3,390.49 is: 4,678.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,223.12 : 8,587.87 = 3,390.49 : x
  2. Step 2: Convert to fraction form
    6,223.12/8,587.87 = 3,390.49/x
  3. Step 3: Cross multiply
    6,223.12x = 8,587.87 × 3,390.49
  4. Step 4: Simplify right side
    6,223.12x = 29,117,044.42
  5. Step 5: Solve for x
    x = 29,117,044.42/6,223.12
  6. Step 6: Final answer
    x = 4,678.85

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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.