Home / 6,688.84-9,235.11-4,174.78

Finding the Fourth Proportional to 6,688.84, 9,235.11 and 4,174.78

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Solution

The fourth proportional to 6,688.84, 9,235.11 and 4,174.78 is: 5,764.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,688.84 : 9,235.11 = 4,174.78 : x
  2. Step 2: Convert to fraction form
    6,688.84/9,235.11 = 4,174.78/x
  3. Step 3: Cross multiply
    6,688.84x = 9,235.11 × 4,174.78
  4. Step 4: Simplify right side
    6,688.84x = 38,554,552.53
  5. Step 5: Solve for x
    x = 38,554,552.53/6,688.84
  6. Step 6: Final answer
    x = 5,764.01

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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.