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Finding the Fourth Proportional to 1,022.41, 1,533.62 and 291.99

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Solution

The fourth proportional to 1,022.41, 1,533.62 and 291.99 is: 437.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022.41 : 1,533.62 = 291.99 : x
  2. Step 2: Convert to fraction form
    1,022.41/1,533.62 = 291.99/x
  3. Step 3: Cross multiply
    1,022.41x = 1,533.62 × 291.99
  4. Step 4: Simplify right side
    1,022.41x = 447,800.24
  5. Step 5: Solve for x
    x = 447,800.24/1,022.41
  6. Step 6: Final answer
    x = 437.99

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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.