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Finding the Fourth Proportional to 3,642.08, 5,025.42 and 2,070.08

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Solution

The fourth proportional to 3,642.08, 5,025.42 and 2,070.08 is: 2,856.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,642.08 : 5,025.42 = 2,070.08 : x
  2. Step 2: Convert to fraction form
    3,642.08/5,025.42 = 2,070.08/x
  3. Step 3: Cross multiply
    3,642.08x = 5,025.42 × 2,070.08
  4. Step 4: Simplify right side
    3,642.08x = 10,403,021.43
  5. Step 5: Solve for x
    x = 10,403,021.43/3,642.08
  6. Step 6: Final answer
    x = 2,856.34

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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.