Home / 7,210.20-10,809.96-2,825.40

Finding the Fourth Proportional to 7,210.20, 10,809.96 and 2,825.40

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Solution

The fourth proportional to 7,210.20, 10,809.96 and 2,825.40 is: 4,236.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,210.20 : 10,809.96 = 2,825.40 : x
  2. Step 2: Convert to fraction form
    7,210.20/10,809.96 = 2,825.40/x
  3. Step 3: Cross multiply
    7,210.20x = 10,809.96 × 2,825.40
  4. Step 4: Simplify right side
    7,210.20x = 30,542,460.98
  5. Step 5: Solve for x
    x = 30,542,460.98/7,210.20
  6. Step 6: Final answer
    x = 4,236.01

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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.