Home / 3,165.77-4,369.19-2,378.45

Finding the Fourth Proportional to 3,165.77, 4,369.19 and 2,378.45

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Solution

The fourth proportional to 3,165.77, 4,369.19 and 2,378.45 is: 3,282.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,165.77 : 4,369.19 = 2,378.45 : x
  2. Step 2: Convert to fraction form
    3,165.77/4,369.19 = 2,378.45/x
  3. Step 3: Cross multiply
    3,165.77x = 4,369.19 × 2,378.45
  4. Step 4: Simplify right side
    3,165.77x = 10,391,866.22
  5. Step 5: Solve for x
    x = 10,391,866.22/3,165.77
  6. Step 6: Final answer
    x = 3,282.58

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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.