Home / 4,222.50-6,334.20-1,448.40

Finding the Fourth Proportional to 4,222.50, 6,334.20 and 1,448.40

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Solution

The fourth proportional to 4,222.50, 6,334.20 and 1,448.40 is: 2,172.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,222.50 : 6,334.20 = 1,448.40 : x
  2. Step 2: Convert to fraction form
    4,222.50/6,334.20 = 1,448.40/x
  3. Step 3: Cross multiply
    4,222.50x = 6,334.20 × 1,448.40
  4. Step 4: Simplify right side
    4,222.50x = 9,174,455.28
  5. Step 5: Solve for x
    x = 9,174,455.28/4,222.50
  6. Step 6: Final answer
    x = 2,172.75

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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.