Home / 2,215.17-3,056.67-1,330.92

Finding the Fourth Proportional to 2,215.17, 3,056.67 and 1,330.92

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Solution

The fourth proportional to 2,215.17, 3,056.67 and 1,330.92 is: 1,836.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,215.17 : 3,056.67 = 1,330.92 : x
  2. Step 2: Convert to fraction form
    2,215.17/3,056.67 = 1,330.92/x
  3. Step 3: Cross multiply
    2,215.17x = 3,056.67 × 1,330.92
  4. Step 4: Simplify right side
    2,215.17x = 4,068,183.24
  5. Step 5: Solve for x
    x = 4,068,183.24/2,215.17
  6. Step 6: Final answer
    x = 1,836.51

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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.