Home / 3,551.82-5,328.81-1,242.78

Finding the Fourth Proportional to 3,551.82, 5,328.81 and 1,242.78

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Solution

The fourth proportional to 3,551.82, 5,328.81 and 1,242.78 is: 1,864.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,551.82 : 5,328.81 = 1,242.78 : x
  2. Step 2: Convert to fraction form
    3,551.82/5,328.81 = 1,242.78/x
  3. Step 3: Cross multiply
    3,551.82x = 5,328.81 × 1,242.78
  4. Step 4: Simplify right side
    3,551.82x = 6,622,538.49
  5. Step 5: Solve for x
    x = 6,622,538.49/3,551.82
  6. Step 6: Final answer
    x = 1,864.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.