Home / 2,720.28-4,080.42-2,448.12

Finding the Fourth Proportional to 2,720.28, 4,080.42 and 2,448.12

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Solution

The fourth proportional to 2,720.28, 4,080.42 and 2,448.12 is: 3,672.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.28 : 4,080.42 = 2,448.12 : x
  2. Step 2: Convert to fraction form
    2,720.28/4,080.42 = 2,448.12/x
  3. Step 3: Cross multiply
    2,720.28x = 4,080.42 × 2,448.12
  4. Step 4: Simplify right side
    2,720.28x = 9,989,357.81
  5. Step 5: Solve for x
    x = 9,989,357.81/2,720.28
  6. Step 6: Final answer
    x = 3,672.18

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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.