Home / 1,519.95-2,097.32-1,078.23

Finding the Fourth Proportional to 1,519.95, 2,097.32 and 1,078.23

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Solution

The fourth proportional to 1,519.95, 2,097.32 and 1,078.23 is: 1,487.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519.95 : 2,097.32 = 1,078.23 : x
  2. Step 2: Convert to fraction form
    1,519.95/2,097.32 = 1,078.23/x
  3. Step 3: Cross multiply
    1,519.95x = 2,097.32 × 1,078.23
  4. Step 4: Simplify right side
    1,519.95x = 2,261,387.95
  5. Step 5: Solve for x
    x = 2,261,387.95/1,519.95
  6. Step 6: Final answer
    x = 1,487.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.