Home / 3,708.99-5,118.28-2,216.57

Finding the Fourth Proportional to 3,708.99, 5,118.28 and 2,216.57

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Solution

The fourth proportional to 3,708.99, 5,118.28 and 2,216.57 is: 3,058.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,708.99 : 5,118.28 = 2,216.57 : x
  2. Step 2: Convert to fraction form
    3,708.99/5,118.28 = 2,216.57/x
  3. Step 3: Cross multiply
    3,708.99x = 5,118.28 × 2,216.57
  4. Step 4: Simplify right side
    3,708.99x = 11,344,994.77
  5. Step 5: Solve for x
    x = 11,344,994.77/3,708.99
  6. Step 6: Final answer
    x = 3,058.78

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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.