Home / 5,540.96-7,643.40-3,550.40

Finding the Fourth Proportional to 5,540.96, 7,643.40 and 3,550.40

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Solution

The fourth proportional to 5,540.96, 7,643.40 and 3,550.40 is: 4,897.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,540.96 : 7,643.40 = 3,550.40 : x
  2. Step 2: Convert to fraction form
    5,540.96/7,643.40 = 3,550.40/x
  3. Step 3: Cross multiply
    5,540.96x = 7,643.40 × 3,550.40
  4. Step 4: Simplify right side
    5,540.96x = 27,137,127.36
  5. Step 5: Solve for x
    x = 27,137,127.36/5,540.96
  6. Step 6: Final answer
    x = 4,897.55

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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.