Home / 3,712.75-5,123.61-2,056.75

Finding the Fourth Proportional to 3,712.75, 5,123.61 and 2,056.75

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Solution

The fourth proportional to 3,712.75, 5,123.61 and 2,056.75 is: 2,838.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,712.75 : 5,123.61 = 2,056.75 : x
  2. Step 2: Convert to fraction form
    3,712.75/5,123.61 = 2,056.75/x
  3. Step 3: Cross multiply
    3,712.75x = 5,123.61 × 2,056.75
  4. Step 4: Simplify right side
    3,712.75x = 10,537,984.87
  5. Step 5: Solve for x
    x = 10,537,984.87/3,712.75
  6. Step 6: Final answer
    x = 2,838.32

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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.