Home / 1,772.96-2,448.12-1,143.80

Finding the Fourth Proportional to 1,772.96, 2,448.12 and 1,143.80

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Solution

The fourth proportional to 1,772.96, 2,448.12 and 1,143.80 is: 1,579.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,772.96 : 2,448.12 = 1,143.80 : x
  2. Step 2: Convert to fraction form
    1,772.96/2,448.12 = 1,143.80/x
  3. Step 3: Cross multiply
    1,772.96x = 2,448.12 × 1,143.80
  4. Step 4: Simplify right side
    1,772.96x = 2,800,159.66
  5. Step 5: Solve for x
    x = 2,800,159.66/1,772.96
  6. Step 6: Final answer
    x = 1,579.37

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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.