Home / 5,329.02-7,986.90-3,381.78

Finding the Fourth Proportional to 5,329.02, 7,986.90 and 3,381.78

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Solution

The fourth proportional to 5,329.02, 7,986.90 and 3,381.78 is: 5,068.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,329.02 : 7,986.90 = 3,381.78 : x
  2. Step 2: Convert to fraction form
    5,329.02/7,986.90 = 3,381.78/x
  3. Step 3: Cross multiply
    5,329.02x = 7,986.90 × 3,381.78
  4. Step 4: Simplify right side
    5,329.02x = 27,009,938.68
  5. Step 5: Solve for x
    x = 27,009,938.68/5,329.02
  6. Step 6: Final answer
    x = 5,068.46

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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.