Home / 5,637.57-7,778.93-3,540.21

Finding the Fourth Proportional to 5,637.57, 7,778.93 and 3,540.21

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Solution

The fourth proportional to 5,637.57, 7,778.93 and 3,540.21 is: 4,884.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,637.57 : 7,778.93 = 3,540.21 : x
  2. Step 2: Convert to fraction form
    5,637.57/7,778.93 = 3,540.21/x
  3. Step 3: Cross multiply
    5,637.57x = 7,778.93 × 3,540.21
  4. Step 4: Simplify right side
    5,637.57x = 27,539,045.78
  5. Step 5: Solve for x
    x = 27,539,045.78/5,637.57
  6. Step 6: Final answer
    x = 4,884.91

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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.