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Finding the Fourth Proportional to 1,052.83, 1,453.20 and 659.83

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Solution

The fourth proportional to 1,052.83, 1,453.20 and 659.83 is: 910.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,052.83 : 1,453.20 = 659.83 : x
  2. Step 2: Convert to fraction form
    1,052.83/1,453.20 = 659.83/x
  3. Step 3: Cross multiply
    1,052.83x = 1,453.20 × 659.83
  4. Step 4: Simplify right side
    1,052.83x = 958,864.96
  5. Step 5: Solve for x
    x = 958,864.96/1,052.83
  6. Step 6: Final answer
    x = 910.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.