Home / 7,228.02-9,974.75-4,243.89

Finding the Fourth Proportional to 7,228.02, 9,974.75 and 4,243.89

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Solution

The fourth proportional to 7,228.02, 9,974.75 and 4,243.89 is: 5,856.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,228.02 : 9,974.75 = 4,243.89 : x
  2. Step 2: Convert to fraction form
    7,228.02/9,974.75 = 4,243.89/x
  3. Step 3: Cross multiply
    7,228.02x = 9,974.75 × 4,243.89
  4. Step 4: Simplify right side
    7,228.02x = 42,331,720.56
  5. Step 5: Solve for x
    x = 42,331,720.56/7,228.02
  6. Step 6: Final answer
    x = 5,856.61

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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.