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Finding the Fourth Proportional to 735.90, 1,102.85 and 370.94

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Solution

The fourth proportional to 735.90, 1,102.85 and 370.94 is: 555.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    735.90 : 1,102.85 = 370.94 : x
  2. Step 2: Convert to fraction form
    735.90/1,102.85 = 370.94/x
  3. Step 3: Cross multiply
    735.90x = 1,102.85 × 370.94
  4. Step 4: Simplify right side
    735.90x = 409,083.81
  5. Step 5: Solve for x
    x = 409,083.81/735.90
  6. Step 6: Final answer
    x = 555.90

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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.