Home / 3,476.20-5,214.78-1,284.70

Finding the Fourth Proportional to 3,476.20, 5,214.78 and 1,284.70

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Solution

The fourth proportional to 3,476.20, 5,214.78 and 1,284.70 is: 1,927.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,476.20 : 5,214.78 = 1,284.70 : x
  2. Step 2: Convert to fraction form
    3,476.20/5,214.78 = 1,284.70/x
  3. Step 3: Cross multiply
    3,476.20x = 5,214.78 × 1,284.70
  4. Step 4: Simplify right side
    3,476.20x = 6,699,427.87
  5. Step 5: Solve for x
    x = 6,699,427.87/3,476.20
  6. Step 6: Final answer
    x = 1,927.23

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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.