Home / 3,124.36-4,311.40-1,727

Finding the Fourth Proportional to 3,124.36, 4,311.40 and 1,727

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Solution

The fourth proportional to 3,124.36, 4,311.40 and 1,727 is: 2,383.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.36 : 4,311.40 = 1,727 : x
  2. Step 2: Convert to fraction form
    3,124.36/4,311.40 = 1,727/x
  3. Step 3: Cross multiply
    3,124.36x = 4,311.40 × 1,727
  4. Step 4: Simplify right side
    3,124.36x = 7,445,787.80
  5. Step 5: Solve for x
    x = 7,445,787.80/3,124.36
  6. Step 6: Final answer
    x = 2,383.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.