Home / 2,761.50-3,811.32-1,642.62

Finding the Fourth Proportional to 2,761.50, 3,811.32 and 1,642.62

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Solution

The fourth proportional to 2,761.50, 3,811.32 and 1,642.62 is: 2,267.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761.50 : 3,811.32 = 1,642.62 : x
  2. Step 2: Convert to fraction form
    2,761.50/3,811.32 = 1,642.62/x
  3. Step 3: Cross multiply
    2,761.50x = 3,811.32 × 1,642.62
  4. Step 4: Simplify right side
    2,761.50x = 6,260,550.46
  5. Step 5: Solve for x
    x = 6,260,550.46/2,761.50
  6. Step 6: Final answer
    x = 2,267.08

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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.