Home / 2,392.22-3,299.85-1,397.39

Finding the Fourth Proportional to 2,392.22, 3,299.85 and 1,397.39

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Solution

The fourth proportional to 2,392.22, 3,299.85 and 1,397.39 is: 1,927.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,392.22 : 3,299.85 = 1,397.39 : x
  2. Step 2: Convert to fraction form
    2,392.22/3,299.85 = 1,397.39/x
  3. Step 3: Cross multiply
    2,392.22x = 3,299.85 × 1,397.39
  4. Step 4: Simplify right side
    2,392.22x = 4,611,177.39
  5. Step 5: Solve for x
    x = 4,611,177.39/2,392.22
  6. Step 6: Final answer
    x = 1,927.57

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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.