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Finding the Fourth Proportional to 1,533.83, 2,299.14 and 752.75

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Solution

The fourth proportional to 1,533.83, 2,299.14 and 752.75 is: 1,128.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,533.83 : 2,299.14 = 752.75 : x
  2. Step 2: Convert to fraction form
    1,533.83/2,299.14 = 752.75/x
  3. Step 3: Cross multiply
    1,533.83x = 2,299.14 × 752.75
  4. Step 4: Simplify right side
    1,533.83x = 1,730,683.38
  5. Step 5: Solve for x
    x = 1,730,683.38/1,533.83
  6. Step 6: Final answer
    x = 1,128.34

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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.