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Finding the Fourth Proportional to 1,901.25, 2,851.88 and 533.25

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Solution

The fourth proportional to 1,901.25, 2,851.88 and 533.25 is: 799.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,901.25 : 2,851.88 = 533.25 : x
  2. Step 2: Convert to fraction form
    1,901.25/2,851.88 = 533.25/x
  3. Step 3: Cross multiply
    1,901.25x = 2,851.88 × 533.25
  4. Step 4: Simplify right side
    1,901.25x = 1,520,762.34
  5. Step 5: Solve for x
    x = 1,520,762.34/1,901.25
  6. Step 6: Final answer
    x = 799.88

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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.