Home / 3,125.90-4,314.30-2,378.72

Finding the Fourth Proportional to 3,125.90, 4,314.30 and 2,378.72

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Solution

The fourth proportional to 3,125.90, 4,314.30 and 2,378.72 is: 3,283.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.90 : 4,314.30 = 2,378.72 : x
  2. Step 2: Convert to fraction form
    3,125.90/4,314.30 = 2,378.72/x
  3. Step 3: Cross multiply
    3,125.90x = 4,314.30 × 2,378.72
  4. Step 4: Simplify right side
    3,125.90x = 10,262,511.70
  5. Step 5: Solve for x
    x = 10,262,511.70/3,125.90
  6. Step 6: Final answer
    x = 3,283.06

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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.