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Finding the Fourth Proportional to 4,253.69, 6,380.54 and 1,480.38

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Solution

The fourth proportional to 4,253.69, 6,380.54 and 1,480.38 is: 2,220.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,253.69 : 6,380.54 = 1,480.38 : x
  2. Step 2: Convert to fraction form
    4,253.69/6,380.54 = 1,480.38/x
  3. Step 3: Cross multiply
    4,253.69x = 6,380.54 × 1,480.38
  4. Step 4: Simplify right side
    4,253.69x = 9,445,623.81
  5. Step 5: Solve for x
    x = 9,445,623.81/4,253.69
  6. Step 6: Final answer
    x = 2,220.57

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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.