Home / 3,923.92-5,855.56-3,487.60

Finding the Fourth Proportional to 3,923.92, 5,855.56 and 3,487.60

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Solution

The fourth proportional to 3,923.92, 5,855.56 and 3,487.60 is: 5,204.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,923.92 : 5,855.56 = 3,487.60 : x
  2. Step 2: Convert to fraction form
    3,923.92/5,855.56 = 3,487.60/x
  3. Step 3: Cross multiply
    3,923.92x = 5,855.56 × 3,487.60
  4. Step 4: Simplify right side
    3,923.92x = 20,421,851.06
  5. Step 5: Solve for x
    x = 20,421,851.06/3,923.92
  6. Step 6: Final answer
    x = 5,204.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.