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Finding the Fourth Proportional to 3,223.96, 4,828.74 and 1,487.32

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Solution

The fourth proportional to 3,223.96, 4,828.74 and 1,487.32 is: 2,227.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,223.96 : 4,828.74 = 1,487.32 : x
  2. Step 2: Convert to fraction form
    3,223.96/4,828.74 = 1,487.32/x
  3. Step 3: Cross multiply
    3,223.96x = 4,828.74 × 1,487.32
  4. Step 4: Simplify right side
    3,223.96x = 7,181,881.58
  5. Step 5: Solve for x
    x = 7,181,881.58/3,223.96
  6. Step 6: Final answer
    x = 2,227.66

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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.