Home / 2,215.24-3,056.61-1,330.72

Finding the Fourth Proportional to 2,215.24, 3,056.61 and 1,330.72

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Solution

The fourth proportional to 2,215.24, 3,056.61 and 1,330.72 is: 1,836.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,215.24 : 3,056.61 = 1,330.72 : x
  2. Step 2: Convert to fraction form
    2,215.24/3,056.61 = 1,330.72/x
  3. Step 3: Cross multiply
    2,215.24x = 3,056.61 × 1,330.72
  4. Step 4: Simplify right side
    2,215.24x = 4,067,492.06
  5. Step 5: Solve for x
    x = 4,067,492.06/2,215.24
  6. Step 6: Final answer
    x = 1,836.14

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.