Home / 3,124.25-4,311.47-1,727

Finding the Fourth Proportional to 3,124.25, 4,311.47 and 1,727

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Solution

The fourth proportional to 3,124.25, 4,311.47 and 1,727 is: 2,383.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.25 : 4,311.47 = 1,727 : x
  2. Step 2: Convert to fraction form
    3,124.25/4,311.47 = 1,727/x
  3. Step 3: Cross multiply
    3,124.25x = 4,311.47 × 1,727
  4. Step 4: Simplify right side
    3,124.25x = 7,445,908.69
  5. Step 5: Solve for x
    x = 7,445,908.69/3,124.25
  6. Step 6: Final answer
    x = 2,383.26

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1.5x scale

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.