Home / 3,832.80-5,710.08-3,643.20

Finding the Fourth Proportional to 3,832.80, 5,710.08 and 3,643.20

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Solution

The fourth proportional to 3,832.80, 5,710.08 and 3,643.20 is: 5,427.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,832.80 : 5,710.08 = 3,643.20 : x
  2. Step 2: Convert to fraction form
    3,832.80/5,710.08 = 3,643.20/x
  3. Step 3: Cross multiply
    3,832.80x = 5,710.08 × 3,643.20
  4. Step 4: Simplify right side
    3,832.80x = 20,802,963.46
  5. Step 5: Solve for x
    x = 20,802,963.46/3,832.80
  6. Step 6: Final answer
    x = 5,427.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.