Home / 2,906.70-4,011.05-1,727.55

Finding the Fourth Proportional to 2,906.70, 4,011.05 and 1,727.55

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Solution

The fourth proportional to 2,906.70, 4,011.05 and 1,727.55 is: 2,383.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,906.70 : 4,011.05 = 1,727.55 : x
  2. Step 2: Convert to fraction form
    2,906.70/4,011.05 = 1,727.55/x
  3. Step 3: Cross multiply
    2,906.70x = 4,011.05 × 1,727.55
  4. Step 4: Simplify right side
    2,906.70x = 6,929,280.79
  5. Step 5: Solve for x
    x = 6,929,280.79/2,906.70
  6. Step 6: Final answer
    x = 2,383.90

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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.