Home / 2,723.28-4,080.98-1,878.12

Finding the Fourth Proportional to 2,723.28, 4,080.98 and 1,878.12

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Solution

The fourth proportional to 2,723.28, 4,080.98 and 1,878.12 is: 2,814.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,723.28 : 4,080.98 = 1,878.12 : x
  2. Step 2: Convert to fraction form
    2,723.28/4,080.98 = 1,878.12/x
  3. Step 3: Cross multiply
    2,723.28x = 4,080.98 × 1,878.12
  4. Step 4: Simplify right side
    2,723.28x = 7,664,570.16
  5. Step 5: Solve for x
    x = 7,664,570.16/2,723.28
  6. Step 6: Final answer
    x = 2,814.46

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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.