Home / 6,920.20-9,549.90-3,776.44

Finding the Fourth Proportional to 6,920.20, 9,549.90 and 3,776.44

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Solution

The fourth proportional to 6,920.20, 9,549.90 and 3,776.44 is: 5,211.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,920.20 : 9,549.90 = 3,776.44 : x
  2. Step 2: Convert to fraction form
    6,920.20/9,549.90 = 3,776.44/x
  3. Step 3: Cross multiply
    6,920.20x = 9,549.90 × 3,776.44
  4. Step 4: Simplify right side
    6,920.20x = 36,064,624.36
  5. Step 5: Solve for x
    x = 36,064,624.36/6,920.20
  6. Step 6: Final answer
    x = 5,211.50

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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.