Home / 6,627.18-9,145.74-3,643.29

Finding the Fourth Proportional to 6,627.18, 9,145.74 and 3,643.29

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Solution

The fourth proportional to 6,627.18, 9,145.74 and 3,643.29 is: 5,027.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,627.18 : 9,145.74 = 3,643.29 : x
  2. Step 2: Convert to fraction form
    6,627.18/9,145.74 = 3,643.29/x
  3. Step 3: Cross multiply
    6,627.18x = 9,145.74 × 3,643.29
  4. Step 4: Simplify right side
    6,627.18x = 33,320,596.75
  5. Step 5: Solve for x
    x = 33,320,596.75/6,627.18
  6. Step 6: Final answer
    x = 5,027.87

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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.