Home / 2,521.31-3,478.19-1,775.68

Finding the Fourth Proportional to 2,521.31, 3,478.19 and 1,775.68

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Solution

The fourth proportional to 2,521.31, 3,478.19 and 1,775.68 is: 2,449.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,521.31 : 3,478.19 = 1,775.68 : x
  2. Step 2: Convert to fraction form
    2,521.31/3,478.19 = 1,775.68/x
  3. Step 3: Cross multiply
    2,521.31x = 3,478.19 × 1,775.68
  4. Step 4: Simplify right side
    2,521.31x = 6,176,134.85
  5. Step 5: Solve for x
    x = 6,176,134.85/2,521.31
  6. Step 6: Final answer
    x = 2,449.58

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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.