Home / 5,427.81-8,142.66-1,964.25

Finding the Fourth Proportional to 5,427.81, 8,142.66 and 1,964.25

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Solution

The fourth proportional to 5,427.81, 8,142.66 and 1,964.25 is: 2,946.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.81 : 8,142.66 = 1,964.25 : x
  2. Step 2: Convert to fraction form
    5,427.81/8,142.66 = 1,964.25/x
  3. Step 3: Cross multiply
    5,427.81x = 8,142.66 × 1,964.25
  4. Step 4: Simplify right side
    5,427.81x = 15,994,219.91
  5. Step 5: Solve for x
    x = 15,994,219.91/5,427.81
  6. Step 6: Final answer
    x = 2,946.72

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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.