Home / 1,511.92-2,254.98-1,282.32

Finding the Fourth Proportional to 1,511.92, 2,254.98 and 1,282.32

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Solution

The fourth proportional to 1,511.92, 2,254.98 and 1,282.32 is: 1,912.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.92 : 2,254.98 = 1,282.32 : x
  2. Step 2: Convert to fraction form
    1,511.92/2,254.98 = 1,282.32/x
  3. Step 3: Cross multiply
    1,511.92x = 2,254.98 × 1,282.32
  4. Step 4: Simplify right side
    1,511.92x = 2,891,605.95
  5. Step 5: Solve for x
    x = 2,891,605.95/1,511.92
  6. Step 6: Final answer
    x = 1,912.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.