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Finding the Fourth Proportional to 6,291.94, 8,680.62 and 4,406.53

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Solution

The fourth proportional to 6,291.94, 8,680.62 and 4,406.53 is: 6,079.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,291.94 : 8,680.62 = 4,406.53 : x
  2. Step 2: Convert to fraction form
    6,291.94/8,680.62 = 4,406.53/x
  3. Step 3: Cross multiply
    6,291.94x = 8,680.62 × 4,406.53
  4. Step 4: Simplify right side
    6,291.94x = 38,251,412.45
  5. Step 5: Solve for x
    x = 38,251,412.45/6,291.94
  6. Step 6: Final answer
    x = 6,079.43

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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.