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Finding the Fourth Proportional to 6,612.56, 9,131.44 and 4,258.80

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Solution

The fourth proportional to 6,612.56, 9,131.44 and 4,258.80 is: 5,881.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,612.56 : 9,131.44 = 4,258.80 : x
  2. Step 2: Convert to fraction form
    6,612.56/9,131.44 = 4,258.80/x
  3. Step 3: Cross multiply
    6,612.56x = 9,131.44 × 4,258.80
  4. Step 4: Simplify right side
    6,612.56x = 38,888,976.67
  5. Step 5: Solve for x
    x = 38,888,976.67/6,612.56
  6. Step 6: Final answer
    x = 5,881.08

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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.