Home / 1,519.08-2,276.60-1,415.40

Finding the Fourth Proportional to 1,519.08, 2,276.60 and 1,415.40

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Solution

The fourth proportional to 1,519.08, 2,276.60 and 1,415.40 is: 2,121.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519.08 : 2,276.60 = 1,415.40 : x
  2. Step 2: Convert to fraction form
    1,519.08/2,276.60 = 1,415.40/x
  3. Step 3: Cross multiply
    1,519.08x = 2,276.60 × 1,415.40
  4. Step 4: Simplify right side
    1,519.08x = 3,222,292.56
  5. Step 5: Solve for x
    x = 3,222,292.56/1,519.08
  6. Step 6: Final answer
    x = 2,121.21

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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.