Home / 1,821.87-2,514.93-1,264.17

Finding the Fourth Proportional to 1,821.87, 2,514.93 and 1,264.17

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Solution

The fourth proportional to 1,821.87, 2,514.93 and 1,264.17 is: 1,745.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821.87 : 2,514.93 = 1,264.17 : x
  2. Step 2: Convert to fraction form
    1,821.87/2,514.93 = 1,264.17/x
  3. Step 3: Cross multiply
    1,821.87x = 2,514.93 × 1,264.17
  4. Step 4: Simplify right side
    1,821.87x = 3,179,299.06
  5. Step 5: Solve for x
    x = 3,179,299.06/1,821.87
  6. Step 6: Final answer
    x = 1,745.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.