Home / 2,443.75-3,372.38-1,339.75

Finding the Fourth Proportional to 2,443.75, 3,372.38 and 1,339.75

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Solution

The fourth proportional to 2,443.75, 3,372.38 and 1,339.75 is: 1,848.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,443.75 : 3,372.38 = 1,339.75 : x
  2. Step 2: Convert to fraction form
    2,443.75/3,372.38 = 1,339.75/x
  3. Step 3: Cross multiply
    2,443.75x = 3,372.38 × 1,339.75
  4. Step 4: Simplify right side
    2,443.75x = 4,518,139.41
  5. Step 5: Solve for x
    x = 4,518,139.41/2,443.75
  6. Step 6: Final answer
    x = 1,848.86

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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.