Home / 4,820.64-7,227.78-3,172.20

Finding the Fourth Proportional to 4,820.64, 7,227.78 and 3,172.20

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Solution

The fourth proportional to 4,820.64, 7,227.78 and 3,172.20 is: 4,756.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,820.64 : 7,227.78 = 3,172.20 : x
  2. Step 2: Convert to fraction form
    4,820.64/7,227.78 = 3,172.20/x
  3. Step 3: Cross multiply
    4,820.64x = 7,227.78 × 3,172.20
  4. Step 4: Simplify right side
    4,820.64x = 22,927,963.72
  5. Step 5: Solve for x
    x = 22,927,963.72/4,820.64
  6. Step 6: Final answer
    x = 4,756.21

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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.