Home / 2,257.50-3,114.95-1,262.79

Finding the Fourth Proportional to 2,257.50, 3,114.95 and 1,262.79

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Solution

The fourth proportional to 2,257.50, 3,114.95 and 1,262.79 is: 1,742.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257.50 : 3,114.95 = 1,262.79 : x
  2. Step 2: Convert to fraction form
    2,257.50/3,114.95 = 1,262.79/x
  3. Step 3: Cross multiply
    2,257.50x = 3,114.95 × 1,262.79
  4. Step 4: Simplify right side
    2,257.50x = 3,933,521.40
  5. Step 5: Solve for x
    x = 3,933,521.40/2,257.50
  6. Step 6: Final answer
    x = 1,742.42

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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.