Home / 6,720.45-10,080.87-2,278.05

Finding the Fourth Proportional to 6,720.45, 10,080.87 and 2,278.05

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Solution

The fourth proportional to 6,720.45, 10,080.87 and 2,278.05 is: 3,417.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,720.45 : 10,080.87 = 2,278.05 : x
  2. Step 2: Convert to fraction form
    6,720.45/10,080.87 = 2,278.05/x
  3. Step 3: Cross multiply
    6,720.45x = 10,080.87 × 2,278.05
  4. Step 4: Simplify right side
    6,720.45x = 22,964,725.90
  5. Step 5: Solve for x
    x = 22,964,725.90/6,720.45
  6. Step 6: Final answer
    x = 3,417.14

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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.