Home / 2,257.21-3,114.98-1,262.55

Finding the Fourth Proportional to 2,257.21, 3,114.98 and 1,262.55

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Solution

The fourth proportional to 2,257.21, 3,114.98 and 1,262.55 is: 1,742.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257.21 : 3,114.98 = 1,262.55 : x
  2. Step 2: Convert to fraction form
    2,257.21/3,114.98 = 1,262.55/x
  3. Step 3: Cross multiply
    2,257.21x = 3,114.98 × 1,262.55
  4. Step 4: Simplify right side
    2,257.21x = 3,932,828.10
  5. Step 5: Solve for x
    x = 3,932,828.10/2,257.21
  6. Step 6: Final answer
    x = 1,742.34

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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.