Home / 3,124.50-4,311.86-1,727.25

Finding the Fourth Proportional to 3,124.50, 4,311.86 and 1,727.25

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Solution

The fourth proportional to 3,124.50, 4,311.86 and 1,727.25 is: 2,383.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.50 : 4,311.86 = 1,727.25 : x
  2. Step 2: Convert to fraction form
    3,124.50/4,311.86 = 1,727.25/x
  3. Step 3: Cross multiply
    3,124.50x = 4,311.86 × 1,727.25
  4. Step 4: Simplify right side
    3,124.50x = 7,447,660.19
  5. Step 5: Solve for x
    x = 7,447,660.19/3,124.50
  6. Step 6: Final answer
    x = 2,383.63

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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.