Home / 1,447.77-2,171.66-1,161.03

Finding the Fourth Proportional to 1,447.77, 2,171.66 and 1,161.03

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Solution

The fourth proportional to 1,447.77, 2,171.66 and 1,161.03 is: 1,741.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447.77 : 2,171.66 = 1,161.03 : x
  2. Step 2: Convert to fraction form
    1,447.77/2,171.66 = 1,161.03/x
  3. Step 3: Cross multiply
    1,447.77x = 2,171.66 × 1,161.03
  4. Step 4: Simplify right side
    1,447.77x = 2,521,362.41
  5. Step 5: Solve for x
    x = 2,521,362.41/1,447.77
  6. Step 6: Final answer
    x = 1,741.55

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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.