Home / 3,742.92-5,159.76-2,620.32

Finding the Fourth Proportional to 3,742.92, 5,159.76 and 2,620.32

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Solution

The fourth proportional to 3,742.92, 5,159.76 and 2,620.32 is: 3,612.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.92 : 5,159.76 = 2,620.32 : x
  2. Step 2: Convert to fraction form
    3,742.92/5,159.76 = 2,620.32/x
  3. Step 3: Cross multiply
    3,742.92x = 5,159.76 × 2,620.32
  4. Step 4: Simplify right side
    3,742.92x = 13,520,222.32
  5. Step 5: Solve for x
    x = 13,520,222.32/3,742.92
  6. Step 6: Final answer
    x = 3,612.21

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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.