Home / 6,688.50-9,230.76-3,855.93

Finding the Fourth Proportional to 6,688.50, 9,230.76 and 3,855.93

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Solution

The fourth proportional to 6,688.50, 9,230.76 and 3,855.93 is: 5,321.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,688.50 : 9,230.76 = 3,855.93 : x
  2. Step 2: Convert to fraction form
    6,688.50/9,230.76 = 3,855.93/x
  3. Step 3: Cross multiply
    6,688.50x = 9,230.76 × 3,855.93
  4. Step 4: Simplify right side
    6,688.50x = 35,593,164.41
  5. Step 5: Solve for x
    x = 35,593,164.41/6,688.50
  6. Step 6: Final answer
    x = 5,321.55

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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.