Home / 3,020.39-4,530.55-1,986.92

Finding the Fourth Proportional to 3,020.39, 4,530.55 and 1,986.92

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Solution

The fourth proportional to 3,020.39, 4,530.55 and 1,986.92 is: 2,980.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,020.39 : 4,530.55 = 1,986.92 : x
  2. Step 2: Convert to fraction form
    3,020.39/4,530.55 = 1,986.92/x
  3. Step 3: Cross multiply
    3,020.39x = 4,530.55 × 1,986.92
  4. Step 4: Simplify right side
    3,020.39x = 9,001,840.41
  5. Step 5: Solve for x
    x = 9,001,840.41/3,020.39
  6. Step 6: Final answer
    x = 2,980.36

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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.