Home / 6,888.81-10,326.06-3,920.87

Finding the Fourth Proportional to 6,888.81, 10,326.06 and 3,920.87

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Solution

The fourth proportional to 6,888.81, 10,326.06 and 3,920.87 is: 5,877.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,888.81 : 10,326.06 = 3,920.87 : x
  2. Step 2: Convert to fraction form
    6,888.81/10,326.06 = 3,920.87/x
  3. Step 3: Cross multiply
    6,888.81x = 10,326.06 × 3,920.87
  4. Step 4: Simplify right side
    6,888.81x = 40,487,087.24
  5. Step 5: Solve for x
    x = 40,487,087.24/6,888.81
  6. Step 6: Final answer
    x = 5,877.23

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1.5x scale

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.