Home / 3,187.61-4,400.70-2,069.54

Finding the Fourth Proportional to 3,187.61, 4,400.70 and 2,069.54

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Solution

The fourth proportional to 3,187.61, 4,400.70 and 2,069.54 is: 2,857.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.61 : 4,400.70 = 2,069.54 : x
  2. Step 2: Convert to fraction form
    3,187.61/4,400.70 = 2,069.54/x
  3. Step 3: Cross multiply
    3,187.61x = 4,400.70 × 2,069.54
  4. Step 4: Simplify right side
    3,187.61x = 9,107,424.68
  5. Step 5: Solve for x
    x = 9,107,424.68/3,187.61
  6. Step 6: Final answer
    x = 2,857.13

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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.