Home / 5,568.02-7,680.31-3,888.80

Finding the Fourth Proportional to 5,568.02, 7,680.31 and 3,888.80

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Solution

The fourth proportional to 5,568.02, 7,680.31 and 3,888.80 is: 5,364.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,568.02 : 7,680.31 = 3,888.80 : x
  2. Step 2: Convert to fraction form
    5,568.02/7,680.31 = 3,888.80/x
  3. Step 3: Cross multiply
    5,568.02x = 7,680.31 × 3,888.80
  4. Step 4: Simplify right side
    5,568.02x = 29,867,189.53
  5. Step 5: Solve for x
    x = 29,867,189.53/5,568.02
  6. Step 6: Final answer
    x = 5,364.06

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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.