Home / 3,475.80-5,213.70-1,284.57

Finding the Fourth Proportional to 3,475.80, 5,213.70 and 1,284.57

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Solution

The fourth proportional to 3,475.80, 5,213.70 and 1,284.57 is: 1,926.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,475.80 : 5,213.70 = 1,284.57 : x
  2. Step 2: Convert to fraction form
    3,475.80/5,213.70 = 1,284.57/x
  3. Step 3: Cross multiply
    3,475.80x = 5,213.70 × 1,284.57
  4. Step 4: Simplify right side
    3,475.80x = 6,697,362.61
  5. Step 5: Solve for x
    x = 6,697,362.61/3,475.80
  6. Step 6: Final answer
    x = 1,926.86

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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.