Home / 5,243.49-7,235.87-2,885.58

Finding the Fourth Proportional to 5,243.49, 7,235.87 and 2,885.58

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Solution

The fourth proportional to 5,243.49, 7,235.87 and 2,885.58 is: 3,982.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,243.49 : 7,235.87 = 2,885.58 : x
  2. Step 2: Convert to fraction form
    5,243.49/7,235.87 = 2,885.58/x
  3. Step 3: Cross multiply
    5,243.49x = 7,235.87 × 2,885.58
  4. Step 4: Simplify right side
    5,243.49x = 20,879,667.33
  5. Step 5: Solve for x
    x = 20,879,667.33/5,243.49
  6. Step 6: Final answer
    x = 3,982.02

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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.