Home / 2,231.70-3,080.34-1,568.76

Finding the Fourth Proportional to 2,231.70, 3,080.34 and 1,568.76

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Solution

The fourth proportional to 2,231.70, 3,080.34 and 1,568.76 is: 2,165.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,231.70 : 3,080.34 = 1,568.76 : x
  2. Step 2: Convert to fraction form
    2,231.70/3,080.34 = 1,568.76/x
  3. Step 3: Cross multiply
    2,231.70x = 3,080.34 × 1,568.76
  4. Step 4: Simplify right side
    2,231.70x = 4,832,314.18
  5. Step 5: Solve for x
    x = 4,832,314.18/2,231.70
  6. Step 6: Final answer
    x = 2,165.31

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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.