Home / 3,140.26-4,331.64-2,257.26

Finding the Fourth Proportional to 3,140.26, 4,331.64 and 2,257.26

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Solution

The fourth proportional to 3,140.26, 4,331.64 and 2,257.26 is: 3,113.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.26 : 4,331.64 = 2,257.26 : x
  2. Step 2: Convert to fraction form
    3,140.26/4,331.64 = 2,257.26/x
  3. Step 3: Cross multiply
    3,140.26x = 4,331.64 × 2,257.26
  4. Step 4: Simplify right side
    3,140.26x = 9,777,637.71
  5. Step 5: Solve for x
    x = 9,777,637.71/3,140.26
  6. Step 6: Final answer
    x = 3,113.64

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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.