Home / 3,427.72-5,140.94-1,670.96

Finding the Fourth Proportional to 3,427.72, 5,140.94 and 1,670.96

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Solution

The fourth proportional to 3,427.72, 5,140.94 and 1,670.96 is: 2,506.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.72 : 5,140.94 = 1,670.96 : x
  2. Step 2: Convert to fraction form
    3,427.72/5,140.94 = 1,670.96/x
  3. Step 3: Cross multiply
    3,427.72x = 5,140.94 × 1,670.96
  4. Step 4: Simplify right side
    3,427.72x = 8,590,303.17
  5. Step 5: Solve for x
    x = 8,590,303.17/3,427.72
  6. Step 6: Final answer
    x = 2,506.13

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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.