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Finding the Fourth Proportional to 3,967.66, 5,952.37 and 2,117.80

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Solution

The fourth proportional to 3,967.66, 5,952.37 and 2,117.80 is: 3,177.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,967.66 : 5,952.37 = 2,117.80 : x
  2. Step 2: Convert to fraction form
    3,967.66/5,952.37 = 2,117.80/x
  3. Step 3: Cross multiply
    3,967.66x = 5,952.37 × 2,117.80
  4. Step 4: Simplify right side
    3,967.66x = 12,605,929.19
  5. Step 5: Solve for x
    x = 12,605,929.19/3,967.66
  6. Step 6: Final answer
    x = 3,177.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.