Home / 7,230.72-10,828.80-3,938.88

Finding the Fourth Proportional to 7,230.72, 10,828.80 and 3,938.88

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Solution

The fourth proportional to 7,230.72, 10,828.80 and 3,938.88 is: 5,898.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,230.72 : 10,828.80 = 3,938.88 : x
  2. Step 2: Convert to fraction form
    7,230.72/10,828.80 = 3,938.88/x
  3. Step 3: Cross multiply
    7,230.72x = 10,828.80 × 3,938.88
  4. Step 4: Simplify right side
    7,230.72x = 42,653,343.74
  5. Step 5: Solve for x
    x = 42,653,343.74/7,230.72
  6. Step 6: Final answer
    x = 5,898.91

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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.