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Finding the Fourth Proportional to 3,558.70, 5,334 and 1,366.48

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Solution

The fourth proportional to 3,558.70, 5,334 and 1,366.48 is: 2,048.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,558.70 : 5,334 = 1,366.48 : x
  2. Step 2: Convert to fraction form
    3,558.70/5,334 = 1,366.48/x
  3. Step 3: Cross multiply
    3,558.70x = 5,334 × 1,366.48
  4. Step 4: Simplify right side
    3,558.70x = 7,288,804.32
  5. Step 5: Solve for x
    x = 7,288,804.32/3,558.70
  6. Step 6: Final answer
    x = 2,048.16

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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.