Home / 2,519.24-3,782.36-1,287.50

Finding the Fourth Proportional to 2,519.24, 3,782.36 and 1,287.50

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Solution

The fourth proportional to 2,519.24, 3,782.36 and 1,287.50 is: 1,933.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,519.24 : 3,782.36 = 1,287.50 : x
  2. Step 2: Convert to fraction form
    2,519.24/3,782.36 = 1,287.50/x
  3. Step 3: Cross multiply
    2,519.24x = 3,782.36 × 1,287.50
  4. Step 4: Simplify right side
    2,519.24x = 4,869,772.81
  5. Step 5: Solve for x
    x = 4,869,772.81/2,519.24
  6. Step 6: Final answer
    x = 1,933.04

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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.