Home / 1,217.06-1,826.82-946.12

Finding the Fourth Proportional to 1,217.06, 1,826.82 and 946.12

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Solution

The fourth proportional to 1,217.06, 1,826.82 and 946.12 is: 1,420.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217.06 : 1,826.82 = 946.12 : x
  2. Step 2: Convert to fraction form
    1,217.06/1,826.82 = 946.12/x
  3. Step 3: Cross multiply
    1,217.06x = 1,826.82 × 946.12
  4. Step 4: Simplify right side
    1,217.06x = 1,728,390.94
  5. Step 5: Solve for x
    x = 1,728,390.94/1,217.06
  6. Step 6: Final answer
    x = 1,420.14

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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.