Home / 5,521.90-7,621.41-3,633.66

Finding the Fourth Proportional to 5,521.90, 7,621.41 and 3,633.66

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Solution

The fourth proportional to 5,521.90, 7,621.41 and 3,633.66 is: 5,015.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,521.90 : 7,621.41 = 3,633.66 : x
  2. Step 2: Convert to fraction form
    5,521.90/7,621.41 = 3,633.66/x
  3. Step 3: Cross multiply
    5,521.90x = 7,621.41 × 3,633.66
  4. Step 4: Simplify right side
    5,521.90x = 27,693,574.55
  5. Step 5: Solve for x
    x = 27,693,574.55/5,521.90
  6. Step 6: Final answer
    x = 5,015.23

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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.