Home / 6,641.79-9,160.44-4,122.48

Finding the Fourth Proportional to 6,641.79, 9,160.44 and 4,122.48

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Solution

The fourth proportional to 6,641.79, 9,160.44 and 4,122.48 is: 5,685.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,641.79 : 9,160.44 = 4,122.48 : x
  2. Step 2: Convert to fraction form
    6,641.79/9,160.44 = 4,122.48/x
  3. Step 3: Cross multiply
    6,641.79x = 9,160.44 × 4,122.48
  4. Step 4: Simplify right side
    6,641.79x = 37,763,730.69
  5. Step 5: Solve for x
    x = 37,763,730.69/6,641.79
  6. Step 6: Final answer
    x = 5,685.78

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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.