Home / 1,447.07-2,166.55-752.22

Finding the Fourth Proportional to 1,447.07, 2,166.55 and 752.22

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Solution

The fourth proportional to 1,447.07, 2,166.55 and 752.22 is: 1,126.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447.07 : 2,166.55 = 752.22 : x
  2. Step 2: Convert to fraction form
    1,447.07/2,166.55 = 752.22/x
  3. Step 3: Cross multiply
    1,447.07x = 2,166.55 × 752.22
  4. Step 4: Simplify right side
    1,447.07x = 1,629,720.36
  5. Step 5: Solve for x
    x = 1,629,720.36/1,447.07
  6. Step 6: Final answer
    x = 1,126.22

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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.