Home / 1,221.02-1,829.43-1,166.18

Finding the Fourth Proportional to 1,221.02, 1,829.43 and 1,166.18

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Solution

The fourth proportional to 1,221.02, 1,829.43 and 1,166.18 is: 1,747.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221.02 : 1,829.43 = 1,166.18 : x
  2. Step 2: Convert to fraction form
    1,221.02/1,829.43 = 1,166.18/x
  3. Step 3: Cross multiply
    1,221.02x = 1,829.43 × 1,166.18
  4. Step 4: Simplify right side
    1,221.02x = 2,133,444.68
  5. Step 5: Solve for x
    x = 2,133,444.68/1,221.02
  6. Step 6: Final answer
    x = 1,747.26

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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.