Home / 3,555.45-4,906.49-1,962.11

Finding the Fourth Proportional to 3,555.45, 4,906.49 and 1,962.11

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Solution

The fourth proportional to 3,555.45, 4,906.49 and 1,962.11 is: 2,707.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555.45 : 4,906.49 = 1,962.11 : x
  2. Step 2: Convert to fraction form
    3,555.45/4,906.49 = 1,962.11/x
  3. Step 3: Cross multiply
    3,555.45x = 4,906.49 × 1,962.11
  4. Step 4: Simplify right side
    3,555.45x = 9,627,095.79
  5. Step 5: Solve for x
    x = 9,627,095.79/3,555.45
  6. Step 6: Final answer
    x = 2,707.70

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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.