Home / 1,863.24-2,571.56-1,155.21

Finding the Fourth Proportional to 1,863.24, 2,571.56 and 1,155.21

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Solution

The fourth proportional to 1,863.24, 2,571.56 and 1,155.21 is: 1,594.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,863.24 : 2,571.56 = 1,155.21 : x
  2. Step 2: Convert to fraction form
    1,863.24/2,571.56 = 1,155.21/x
  3. Step 3: Cross multiply
    1,863.24x = 2,571.56 × 1,155.21
  4. Step 4: Simplify right side
    1,863.24x = 2,970,691.83
  5. Step 5: Solve for x
    x = 2,970,691.83/1,863.24
  6. Step 6: Final answer
    x = 1,594.37

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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.