Home / 5,137.60-7,707.28-1,627.55

Finding the Fourth Proportional to 5,137.60, 7,707.28 and 1,627.55

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Solution

The fourth proportional to 5,137.60, 7,707.28 and 1,627.55 is: 2,441.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.60 : 7,707.28 = 1,627.55 : x
  2. Step 2: Convert to fraction form
    5,137.60/7,707.28 = 1,627.55/x
  3. Step 3: Cross multiply
    5,137.60x = 7,707.28 × 1,627.55
  4. Step 4: Simplify right side
    5,137.60x = 12,543,983.56
  5. Step 5: Solve for x
    x = 12,543,983.56/5,137.60
  6. Step 6: Final answer
    x = 2,441.60

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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.