Home / 5,238.11-7,228.70-2,848.20

Finding the Fourth Proportional to 5,238.11, 7,228.70 and 2,848.20

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Solution

The fourth proportional to 5,238.11, 7,228.70 and 2,848.20 is: 3,930.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,238.11 : 7,228.70 = 2,848.20 : x
  2. Step 2: Convert to fraction form
    5,238.11/7,228.70 = 2,848.20/x
  3. Step 3: Cross multiply
    5,238.11x = 7,228.70 × 2,848.20
  4. Step 4: Simplify right side
    5,238.11x = 20,588,769.10
  5. Step 5: Solve for x
    x = 20,588,769.10/5,238.11
  6. Step 6: Final answer
    x = 3,930.58

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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.