Home / 3,983.90-5,498.08-2,215.53

Finding the Fourth Proportional to 3,983.90, 5,498.08 and 2,215.53

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Solution

The fourth proportional to 3,983.90, 5,498.08 and 2,215.53 is: 3,057.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,983.90 : 5,498.08 = 2,215.53 : x
  2. Step 2: Convert to fraction form
    3,983.90/5,498.08 = 2,215.53/x
  3. Step 3: Cross multiply
    3,983.90x = 5,498.08 × 2,215.53
  4. Step 4: Simplify right side
    3,983.90x = 12,181,155.64
  5. Step 5: Solve for x
    x = 12,181,155.64/3,983.90
  6. Step 6: Final answer
    x = 3,057.60

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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.