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Finding the Fourth Proportional to 6,369.82, 8,781.08 and 4,475.74

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Solution

The fourth proportional to 6,369.82, 8,781.08 and 4,475.74 is: 6,170.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,369.82 : 8,781.08 = 4,475.74 : x
  2. Step 2: Convert to fraction form
    6,369.82/8,781.08 = 4,475.74/x
  3. Step 3: Cross multiply
    6,369.82x = 8,781.08 × 4,475.74
  4. Step 4: Simplify right side
    6,369.82x = 39,301,831.00
  5. Step 5: Solve for x
    x = 39,301,831.00/6,369.82
  6. Step 6: Final answer
    x = 6,170.01

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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.