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Finding the Fourth Proportional to 4,959.25, 7,438.88 and 1,881.25

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Solution

The fourth proportional to 4,959.25, 7,438.88 and 1,881.25 is: 2,821.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,959.25 : 7,438.88 = 1,881.25 : x
  2. Step 2: Convert to fraction form
    4,959.25/7,438.88 = 1,881.25/x
  3. Step 3: Cross multiply
    4,959.25x = 7,438.88 × 1,881.25
  4. Step 4: Simplify right side
    4,959.25x = 13,994,393
  5. Step 5: Solve for x
    x = 13,994,393/4,959.25
  6. Step 6: Final answer
    x = 2,821.88

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Similar ratio
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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.