Home / 3,535.63-4,878.77-2,190.63

Finding the Fourth Proportional to 3,535.63, 4,878.77 and 2,190.63

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Solution

The fourth proportional to 3,535.63, 4,878.77 and 2,190.63 is: 3,022.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,535.63 : 4,878.77 = 2,190.63 : x
  2. Step 2: Convert to fraction form
    3,535.63/4,878.77 = 2,190.63/x
  3. Step 3: Cross multiply
    3,535.63x = 4,878.77 × 2,190.63
  4. Step 4: Simplify right side
    3,535.63x = 10,687,579.93
  5. Step 5: Solve for x
    x = 10,687,579.93/3,535.63
  6. Step 6: Final answer
    x = 3,022.82

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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.