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Finding the Fourth Proportional to 1,533.32, 2,299.94 and 437.76

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Solution

The fourth proportional to 1,533.32, 2,299.94 and 437.76 is: 656.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,533.32 : 2,299.94 = 437.76 : x
  2. Step 2: Convert to fraction form
    1,533.32/2,299.94 = 437.76/x
  3. Step 3: Cross multiply
    1,533.32x = 2,299.94 × 437.76
  4. Step 4: Simplify right side
    1,533.32x = 1,006,821.73
  5. Step 5: Solve for x
    x = 1,006,821.73/1,533.32
  6. Step 6: Final answer
    x = 656.63

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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.