Home / 1,986.56-2,984.96-1,726.72

Finding the Fourth Proportional to 1,986.56, 2,984.96 and 1,726.72

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Solution

The fourth proportional to 1,986.56, 2,984.96 and 1,726.72 is: 2,594.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986.56 : 2,984.96 = 1,726.72 : x
  2. Step 2: Convert to fraction form
    1,986.56/2,984.96 = 1,726.72/x
  3. Step 3: Cross multiply
    1,986.56x = 2,984.96 × 1,726.72
  4. Step 4: Simplify right side
    1,986.56x = 5,154,190.13
  5. Step 5: Solve for x
    x = 5,154,190.13/1,986.56
  6. Step 6: Final answer
    x = 2,594.53

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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.