Home / 5,178.02-7,750.91-3,330.81

Finding the Fourth Proportional to 5,178.02, 7,750.91 and 3,330.81

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Solution

The fourth proportional to 5,178.02, 7,750.91 and 3,330.81 is: 4,985.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178.02 : 7,750.91 = 3,330.81 : x
  2. Step 2: Convert to fraction form
    5,178.02/7,750.91 = 3,330.81/x
  3. Step 3: Cross multiply
    5,178.02x = 7,750.91 × 3,330.81
  4. Step 4: Simplify right side
    5,178.02x = 25,816,791.88
  5. Step 5: Solve for x
    x = 25,816,791.88/5,178.02
  6. Step 6: Final answer
    x = 4,985.85

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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.