Home / 1,519.02-2,272.46-1,315.80

Finding the Fourth Proportional to 1,519.02, 2,272.46 and 1,315.80

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Solution

The fourth proportional to 1,519.02, 2,272.46 and 1,315.80 is: 1,968.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519.02 : 2,272.46 = 1,315.80 : x
  2. Step 2: Convert to fraction form
    1,519.02/2,272.46 = 1,315.80/x
  3. Step 3: Cross multiply
    1,519.02x = 2,272.46 × 1,315.80
  4. Step 4: Simplify right side
    1,519.02x = 2,990,102.87
  5. Step 5: Solve for x
    x = 2,990,102.87/1,519.02
  6. Step 6: Final answer
    x = 1,968.44

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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.