Home / 2,781.41-3,838.32-1,602.45

Finding the Fourth Proportional to 2,781.41, 3,838.32 and 1,602.45

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Solution

The fourth proportional to 2,781.41, 3,838.32 and 1,602.45 is: 2,211.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781.41 : 3,838.32 = 1,602.45 : x
  2. Step 2: Convert to fraction form
    2,781.41/3,838.32 = 1,602.45/x
  3. Step 3: Cross multiply
    2,781.41x = 3,838.32 × 1,602.45
  4. Step 4: Simplify right side
    2,781.41x = 6,150,715.88
  5. Step 5: Solve for x
    x = 6,150,715.88/2,781.41
  6. Step 6: Final answer
    x = 2,211.37

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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.