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Finding the Fourth Proportional to 3,388.87, 4,666.25 and 2,966.86

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Solution

The fourth proportional to 3,388.87, 4,666.25 and 2,966.86 is: 4,085.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.87 : 4,666.25 = 2,966.86 : x
  2. Step 2: Convert to fraction form
    3,388.87/4,666.25 = 2,966.86/x
  3. Step 3: Cross multiply
    3,388.87x = 4,666.25 × 2,966.86
  4. Step 4: Simplify right side
    3,388.87x = 13,844,110.48
  5. Step 5: Solve for x
    x = 13,844,110.48/3,388.87
  6. Step 6: Final answer
    x = 4,085.17

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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.