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Finding the Fourth Proportional to 5,636.62, 8,448.96 and 1,887.46

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Solution

The fourth proportional to 5,636.62, 8,448.96 and 1,887.46 is: 2,829.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,636.62 : 8,448.96 = 1,887.46 : x
  2. Step 2: Convert to fraction form
    5,636.62/8,448.96 = 1,887.46/x
  3. Step 3: Cross multiply
    5,636.62x = 8,448.96 × 1,887.46
  4. Step 4: Simplify right side
    5,636.62x = 15,947,074.04
  5. Step 5: Solve for x
    x = 15,947,074.04/5,636.62
  6. Step 6: Final answer
    x = 2,829.19

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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.