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Finding the Fourth Proportional to 1,177.57, 1,626.11 and 735.58

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Solution

The fourth proportional to 1,177.57, 1,626.11 and 735.58 is: 1,015.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177.57 : 1,626.11 = 735.58 : x
  2. Step 2: Convert to fraction form
    1,177.57/1,626.11 = 735.58/x
  3. Step 3: Cross multiply
    1,177.57x = 1,626.11 × 735.58
  4. Step 4: Simplify right side
    1,177.57x = 1,196,133.99
  5. Step 5: Solve for x
    x = 1,196,133.99/1,177.57
  6. Step 6: Final answer
    x = 1,015.76

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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.