Home / 5,636.71-7,777.20-3,644.11

Finding the Fourth Proportional to 5,636.71, 7,777.20 and 3,644.11

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Solution

The fourth proportional to 5,636.71, 7,777.20 and 3,644.11 is: 5,027.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,636.71 : 7,777.20 = 3,644.11 : x
  2. Step 2: Convert to fraction form
    5,636.71/7,777.20 = 3,644.11/x
  3. Step 3: Cross multiply
    5,636.71x = 7,777.20 × 3,644.11
  4. Step 4: Simplify right side
    5,636.71x = 28,340,972.29
  5. Step 5: Solve for x
    x = 28,340,972.29/5,636.71
  6. Step 6: Final answer
    x = 5,027.93

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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.