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Finding the Fourth Proportional to 2,379.70, 3,569.65 and 736.28

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Solution

The fourth proportional to 2,379.70, 3,569.65 and 736.28 is: 1,104.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,379.70 : 3,569.65 = 736.28 : x
  2. Step 2: Convert to fraction form
    2,379.70/3,569.65 = 736.28/x
  3. Step 3: Cross multiply
    2,379.70x = 3,569.65 × 736.28
  4. Step 4: Simplify right side
    2,379.70x = 2,628,261.90
  5. Step 5: Solve for x
    x = 2,628,261.90/2,379.70
  6. Step 6: Final answer
    x = 1,104.45

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1.5x scale

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.