Home / 6,683.31-9,225.40-3,888.81

Finding the Fourth Proportional to 6,683.31, 9,225.40 and 3,888.81

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Solution

The fourth proportional to 6,683.31, 9,225.40 and 3,888.81 is: 5,367.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,683.31 : 9,225.40 = 3,888.81 : x
  2. Step 2: Convert to fraction form
    6,683.31/9,225.40 = 3,888.81/x
  3. Step 3: Cross multiply
    6,683.31x = 9,225.40 × 3,888.81
  4. Step 4: Simplify right side
    6,683.31x = 35,875,860.56
  5. Step 5: Solve for x
    x = 35,875,860.56/6,683.31
  6. Step 6: Final answer
    x = 5,367.98

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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.