Home / 3,100.64-4,278.62-1,703.39

Finding the Fourth Proportional to 3,100.64, 4,278.62 and 1,703.39

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Solution

The fourth proportional to 3,100.64, 4,278.62 and 1,703.39 is: 2,350.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,100.64 : 4,278.62 = 1,703.39 : x
  2. Step 2: Convert to fraction form
    3,100.64/4,278.62 = 1,703.39/x
  3. Step 3: Cross multiply
    3,100.64x = 4,278.62 × 1,703.39
  4. Step 4: Simplify right side
    3,100.64x = 7,288,141.39
  5. Step 5: Solve for x
    x = 7,288,141.39/3,100.64
  6. Step 6: Final answer
    x = 2,350.53

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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.