Home / 3,416.70-5,121.63-1,335.39

Finding the Fourth Proportional to 3,416.70, 5,121.63 and 1,335.39

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Solution

The fourth proportional to 3,416.70, 5,121.63 and 1,335.39 is: 2,001.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,416.70 : 5,121.63 = 1,335.39 : x
  2. Step 2: Convert to fraction form
    3,416.70/5,121.63 = 1,335.39/x
  3. Step 3: Cross multiply
    3,416.70x = 5,121.63 × 1,335.39
  4. Step 4: Simplify right side
    3,416.70x = 6,839,373.49
  5. Step 5: Solve for x
    x = 6,839,373.49/3,416.70
  6. Step 6: Final answer
    x = 2,001.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.