Home / 3,511.68-5,263.74-1,866.57

Finding the Fourth Proportional to 3,511.68, 5,263.74 and 1,866.57

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Solution

The fourth proportional to 3,511.68, 5,263.74 and 1,866.57 is: 2,797.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.68 : 5,263.74 = 1,866.57 : x
  2. Step 2: Convert to fraction form
    3,511.68/5,263.74 = 1,866.57/x
  3. Step 3: Cross multiply
    3,511.68x = 5,263.74 × 1,866.57
  4. Step 4: Simplify right side
    3,511.68x = 9,825,139.17
  5. Step 5: Solve for x
    x = 9,825,139.17/3,511.68
  6. Step 6: Final answer
    x = 2,797.85

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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.