Home / 2,184.64-3,279.84-1,015.90

Finding the Fourth Proportional to 2,184.64, 3,279.84 and 1,015.90

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Solution

The fourth proportional to 2,184.64, 3,279.84 and 1,015.90 is: 1,525.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,184.64 : 3,279.84 = 1,015.90 : x
  2. Step 2: Convert to fraction form
    2,184.64/3,279.84 = 1,015.90/x
  3. Step 3: Cross multiply
    2,184.64x = 3,279.84 × 1,015.90
  4. Step 4: Simplify right side
    2,184.64x = 3,331,989.46
  5. Step 5: Solve for x
    x = 3,331,989.46/2,184.64
  6. Step 6: Final answer
    x = 1,525.19

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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.