Home / 1,727.13-2,380.02-1,228.90

Finding the Fourth Proportional to 1,727.13, 2,380.02 and 1,228.90

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Solution

The fourth proportional to 1,727.13, 2,380.02 and 1,228.90 is: 1,693.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,727.13 : 2,380.02 = 1,228.90 : x
  2. Step 2: Convert to fraction form
    1,727.13/2,380.02 = 1,228.90/x
  3. Step 3: Cross multiply
    1,727.13x = 2,380.02 × 1,228.90
  4. Step 4: Simplify right side
    1,727.13x = 2,924,806.58
  5. Step 5: Solve for x
    x = 2,924,806.58/1,727.13
  6. Step 6: Final answer
    x = 1,693.45

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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.