Home / 7,107.56-10,643.52-3,821.60

Finding the Fourth Proportional to 7,107.56, 10,643.52 and 3,821.60

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Solution

The fourth proportional to 7,107.56, 10,643.52 and 3,821.60 is: 5,722.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,107.56 : 10,643.52 = 3,821.60 : x
  2. Step 2: Convert to fraction form
    7,107.56/10,643.52 = 3,821.60/x
  3. Step 3: Cross multiply
    7,107.56x = 10,643.52 × 3,821.60
  4. Step 4: Simplify right side
    7,107.56x = 40,675,276.03
  5. Step 5: Solve for x
    x = 40,675,276.03/7,107.56
  6. Step 6: Final answer
    x = 5,722.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.