Home / 6,470.20-9,692.88-3,688.66

Finding the Fourth Proportional to 6,470.20, 9,692.88 and 3,688.66

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Solution

The fourth proportional to 6,470.20, 9,692.88 and 3,688.66 is: 5,525.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,470.20 : 9,692.88 = 3,688.66 : x
  2. Step 2: Convert to fraction form
    6,470.20/9,692.88 = 3,688.66/x
  3. Step 3: Cross multiply
    6,470.20x = 9,692.88 × 3,688.66
  4. Step 4: Simplify right side
    6,470.20x = 35,753,738.74
  5. Step 5: Solve for x
    x = 35,753,738.74/6,470.20
  6. Step 6: Final answer
    x = 5,525.91

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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.