Home / 3,914.80-5,868.10-1,316.84

Finding the Fourth Proportional to 3,914.80, 5,868.10 and 1,316.84

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Solution

The fourth proportional to 3,914.80, 5,868.10 and 1,316.84 is: 1,973.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,914.80 : 5,868.10 = 1,316.84 : x
  2. Step 2: Convert to fraction form
    3,914.80/5,868.10 = 1,316.84/x
  3. Step 3: Cross multiply
    3,914.80x = 5,868.10 × 1,316.84
  4. Step 4: Simplify right side
    3,914.80x = 7,727,348.80
  5. Step 5: Solve for x
    x = 7,727,348.80/3,914.80
  6. Step 6: Final answer
    x = 1,973.88

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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.