Home / 2,422.40-3,344.51-1,861.85

Finding the Fourth Proportional to 2,422.40, 3,344.51 and 1,861.85

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Solution

The fourth proportional to 2,422.40, 3,344.51 and 1,861.85 is: 2,570.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,422.40 : 3,344.51 = 1,861.85 : x
  2. Step 2: Convert to fraction form
    2,422.40/3,344.51 = 1,861.85/x
  3. Step 3: Cross multiply
    2,422.40x = 3,344.51 × 1,861.85
  4. Step 4: Simplify right side
    2,422.40x = 6,226,975.94
  5. Step 5: Solve for x
    x = 6,226,975.94/2,422.40
  6. Step 6: Final answer
    x = 2,570.58

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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.