Home / 3,511.20-5,266.78-914.06

Finding the Fourth Proportional to 3,511.20, 5,266.78 and 914.06

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Solution

The fourth proportional to 3,511.20, 5,266.78 and 914.06 is: 1,371.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.20 : 5,266.78 = 914.06 : x
  2. Step 2: Convert to fraction form
    3,511.20/5,266.78 = 914.06/x
  3. Step 3: Cross multiply
    3,511.20x = 5,266.78 × 914.06
  4. Step 4: Simplify right side
    3,511.20x = 4,814,152.93
  5. Step 5: Solve for x
    x = 4,814,152.93/3,511.20
  6. Step 6: Final answer
    x = 1,371.08

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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.