Home / 1,540.41-2,126.21-1,226.22

Finding the Fourth Proportional to 1,540.41, 2,126.21 and 1,226.22

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Solution

The fourth proportional to 1,540.41, 2,126.21 and 1,226.22 is: 1,692.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,540.41 : 2,126.21 = 1,226.22 : x
  2. Step 2: Convert to fraction form
    1,540.41/2,126.21 = 1,226.22/x
  3. Step 3: Cross multiply
    1,540.41x = 2,126.21 × 1,226.22
  4. Step 4: Simplify right side
    1,540.41x = 2,607,195.10
  5. Step 5: Solve for x
    x = 2,607,195.10/1,540.41
  6. Step 6: Final answer
    x = 1,692.53

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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.