Home / 3,712.86-5,123.54-2,722.32

Finding the Fourth Proportional to 3,712.86, 5,123.54 and 2,722.32

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Solution

The fourth proportional to 3,712.86, 5,123.54 and 2,722.32 is: 3,756.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,712.86 : 5,123.54 = 2,722.32 : x
  2. Step 2: Convert to fraction form
    3,712.86/5,123.54 = 2,722.32/x
  3. Step 3: Cross multiply
    3,712.86x = 5,123.54 × 2,722.32
  4. Step 4: Simplify right side
    3,712.86x = 13,947,901.80
  5. Step 5: Solve for x
    x = 13,947,901.80/3,712.86
  6. Step 6: Final answer
    x = 3,756.65

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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.