Home / 3,071.38-4,602.96-1,121.74

Finding the Fourth Proportional to 3,071.38, 4,602.96 and 1,121.74

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Solution

The fourth proportional to 3,071.38, 4,602.96 and 1,121.74 is: 1,681.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,071.38 : 4,602.96 = 1,121.74 : x
  2. Step 2: Convert to fraction form
    3,071.38/4,602.96 = 1,121.74/x
  3. Step 3: Cross multiply
    3,071.38x = 4,602.96 × 1,121.74
  4. Step 4: Simplify right side
    3,071.38x = 5,163,324.35
  5. Step 5: Solve for x
    x = 5,163,324.35/3,071.38
  6. Step 6: Final answer
    x = 1,681.11

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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.