Home / 3,643.28-5,029.52-2,151.66

Finding the Fourth Proportional to 3,643.28, 5,029.52 and 2,151.66

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Solution

The fourth proportional to 3,643.28, 5,029.52 and 2,151.66 is: 2,970.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,643.28 : 5,029.52 = 2,151.66 : x
  2. Step 2: Convert to fraction form
    3,643.28/5,029.52 = 2,151.66/x
  3. Step 3: Cross multiply
    3,643.28x = 5,029.52 × 2,151.66
  4. Step 4: Simplify right side
    3,643.28x = 10,821,817.00
  5. Step 5: Solve for x
    x = 10,821,817.00/3,643.28
  6. Step 6: Final answer
    x = 2,970.35

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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.