Home / 5,871.36-8,100.40-3,351.65

Finding the Fourth Proportional to 5,871.36, 8,100.40 and 3,351.65

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Solution

The fourth proportional to 5,871.36, 8,100.40 and 3,351.65 is: 4,624.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,871.36 : 8,100.40 = 3,351.65 : x
  2. Step 2: Convert to fraction form
    5,871.36/8,100.40 = 3,351.65/x
  3. Step 3: Cross multiply
    5,871.36x = 8,100.40 × 3,351.65
  4. Step 4: Simplify right side
    5,871.36x = 27,149,688.90
  5. Step 5: Solve for x
    x = 27,149,688.90/5,871.36
  6. Step 6: Final answer
    x = 4,624.09

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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.