Home / 5,627.76-7,762.84-3,635.12

Finding the Fourth Proportional to 5,627.76, 7,762.84 and 3,635.12

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Solution

The fourth proportional to 5,627.76, 7,762.84 and 3,635.12 is: 5,014.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,627.76 : 7,762.84 = 3,635.12 : x
  2. Step 2: Convert to fraction form
    5,627.76/7,762.84 = 3,635.12/x
  3. Step 3: Cross multiply
    5,627.76x = 7,762.84 × 3,635.12
  4. Step 4: Simplify right side
    5,627.76x = 28,218,854.94
  5. Step 5: Solve for x
    x = 28,218,854.94/5,627.76
  6. Step 6: Final answer
    x = 5,014.23

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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.