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Finding the Fourth Proportional to 1,353.13, 2,030.32 and 735.91

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Solution

The fourth proportional to 1,353.13, 2,030.32 and 735.91 is: 1,104.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353.13 : 2,030.32 = 735.91 : x
  2. Step 2: Convert to fraction form
    1,353.13/2,030.32 = 735.91/x
  3. Step 3: Cross multiply
    1,353.13x = 2,030.32 × 735.91
  4. Step 4: Simplify right side
    1,353.13x = 1,494,130.21
  5. Step 5: Solve for x
    x = 1,494,130.21/1,353.13
  6. Step 6: Final answer
    x = 1,104.20

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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.