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Finding the Fourth Proportional to 3,887.45, 5,829.04 and 2,656.25

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Solution

The fourth proportional to 3,887.45, 5,829.04 and 2,656.25 is: 3,982.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.45 : 5,829.04 = 2,656.25 : x
  2. Step 2: Convert to fraction form
    3,887.45/5,829.04 = 2,656.25/x
  3. Step 3: Cross multiply
    3,887.45x = 5,829.04 × 2,656.25
  4. Step 4: Simplify right side
    3,887.45x = 15,483,374.22
  5. Step 5: Solve for x
    x = 15,483,374.22/3,887.45
  6. Step 6: Final answer
    x = 3,982.91

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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.