Home / 6,540.51-9,027.21-3,887.40

Finding the Fourth Proportional to 6,540.51, 9,027.21 and 3,887.40

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Solution

The fourth proportional to 6,540.51, 9,027.21 and 3,887.40 is: 5,365.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,540.51 : 9,027.21 = 3,887.40 : x
  2. Step 2: Convert to fraction form
    6,540.51/9,027.21 = 3,887.40/x
  3. Step 3: Cross multiply
    6,540.51x = 9,027.21 × 3,887.40
  4. Step 4: Simplify right side
    6,540.51x = 35,092,376.15
  5. Step 5: Solve for x
    x = 35,092,376.15/6,540.51
  6. Step 6: Final answer
    x = 5,365.39

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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.