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Finding the Fourth Proportional to 5,811.40, 8,018.40 and 3,292.93

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Solution

The fourth proportional to 5,811.40, 8,018.40 and 3,292.93 is: 4,543.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,811.40 : 8,018.40 = 3,292.93 : x
  2. Step 2: Convert to fraction form
    5,811.40/8,018.40 = 3,292.93/x
  3. Step 3: Cross multiply
    5,811.40x = 8,018.40 × 3,292.93
  4. Step 4: Simplify right side
    5,811.40x = 26,404,052.28
  5. Step 5: Solve for x
    x = 26,404,052.28/5,811.40
  6. Step 6: Final answer
    x = 4,543.49

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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.