Home / 2,576.24-3,558.32-2,231.20

Finding the Fourth Proportional to 2,576.24, 3,558.32 and 2,231.20

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Solution

The fourth proportional to 2,576.24, 3,558.32 and 2,231.20 is: 3,081.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,576.24 : 3,558.32 = 2,231.20 : x
  2. Step 2: Convert to fraction form
    2,576.24/3,558.32 = 2,231.20/x
  3. Step 3: Cross multiply
    2,576.24x = 3,558.32 × 2,231.20
  4. Step 4: Simplify right side
    2,576.24x = 7,939,323.58
  5. Step 5: Solve for x
    x = 7,939,323.58/2,576.24
  6. Step 6: Final answer
    x = 3,081.75

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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.