Home / 4,121.92-5,688.52-2,328.77

Finding the Fourth Proportional to 4,121.92, 5,688.52 and 2,328.77

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Solution

The fourth proportional to 4,121.92, 5,688.52 and 2,328.77 is: 3,213.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.92 : 5,688.52 = 2,328.77 : x
  2. Step 2: Convert to fraction form
    4,121.92/5,688.52 = 2,328.77/x
  3. Step 3: Cross multiply
    4,121.92x = 5,688.52 × 2,328.77
  4. Step 4: Simplify right side
    4,121.92x = 13,247,274.76
  5. Step 5: Solve for x
    x = 13,247,274.76/4,121.92
  6. Step 6: Final answer
    x = 3,213.86

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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.