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Finding the Fourth Proportional to 3,953.12, 5,928.48 and 1,488.32

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Solution

The fourth proportional to 3,953.12, 5,928.48 and 1,488.32 is: 2,232.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,953.12 : 5,928.48 = 1,488.32 : x
  2. Step 2: Convert to fraction form
    3,953.12/5,928.48 = 1,488.32/x
  3. Step 3: Cross multiply
    3,953.12x = 5,928.48 × 1,488.32
  4. Step 4: Simplify right side
    3,953.12x = 8,823,475.35
  5. Step 5: Solve for x
    x = 8,823,475.35/3,953.12
  6. Step 6: Final answer
    x = 2,232.03

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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.