Home / 2,719.20-4,070.70-2,427.60

Finding the Fourth Proportional to 2,719.20, 4,070.70 and 2,427.60

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Solution

The fourth proportional to 2,719.20, 4,070.70 and 2,427.60 is: 3,634.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,719.20 : 4,070.70 = 2,427.60 : x
  2. Step 2: Convert to fraction form
    2,719.20/4,070.70 = 2,427.60/x
  3. Step 3: Cross multiply
    2,719.20x = 4,070.70 × 2,427.60
  4. Step 4: Simplify right side
    2,719.20x = 9,882,031.32
  5. Step 5: Solve for x
    x = 9,882,031.32/2,719.20
  6. Step 6: Final answer
    x = 3,634.17

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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.