Home / 4,989.64-7,486.19-2,218.26

Finding the Fourth Proportional to 4,989.64, 7,486.19 and 2,218.26

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Solution

The fourth proportional to 4,989.64, 7,486.19 and 2,218.26 is: 3,328.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.64 : 7,486.19 = 2,218.26 : x
  2. Step 2: Convert to fraction form
    4,989.64/7,486.19 = 2,218.26/x
  3. Step 3: Cross multiply
    4,989.64x = 7,486.19 × 2,218.26
  4. Step 4: Simplify right side
    4,989.64x = 16,606,315.83
  5. Step 5: Solve for x
    x = 16,606,315.83/4,989.64
  6. Step 6: Final answer
    x = 3,328.16

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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.