Home / 3,340.43-4,607.86-2,161.50

Finding the Fourth Proportional to 3,340.43, 4,607.86 and 2,161.50

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Solution

The fourth proportional to 3,340.43, 4,607.86 and 2,161.50 is: 2,981.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,340.43 : 4,607.86 = 2,161.50 : x
  2. Step 2: Convert to fraction form
    3,340.43/4,607.86 = 2,161.50/x
  3. Step 3: Cross multiply
    3,340.43x = 4,607.86 × 2,161.50
  4. Step 4: Simplify right side
    3,340.43x = 9,959,889.39
  5. Step 5: Solve for x
    x = 9,959,889.39/3,340.43
  6. Step 6: Final answer
    x = 2,981.62

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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.