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Finding the Fourth Proportional to 1,325.43, 1,828.85 and 735.89

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Solution

The fourth proportional to 1,325.43, 1,828.85 and 735.89 is: 1,015.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325.43 : 1,828.85 = 735.89 : x
  2. Step 2: Convert to fraction form
    1,325.43/1,828.85 = 735.89/x
  3. Step 3: Cross multiply
    1,325.43x = 1,828.85 × 735.89
  4. Step 4: Simplify right side
    1,325.43x = 1,345,819.60
  5. Step 5: Solve for x
    x = 1,345,819.60/1,325.43
  6. Step 6: Final answer
    x = 1,015.38

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Half scale
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Double scale
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1.5x scale

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.