Home / 1,513.68-2,087.76-1,447.44

Finding the Fourth Proportional to 1,513.68, 2,087.76 and 1,447.44

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Solution

The fourth proportional to 1,513.68, 2,087.76 and 1,447.44 is: 1,996.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,513.68 : 2,087.76 = 1,447.44 : x
  2. Step 2: Convert to fraction form
    1,513.68/2,087.76 = 1,447.44/x
  3. Step 3: Cross multiply
    1,513.68x = 2,087.76 × 1,447.44
  4. Step 4: Simplify right side
    1,513.68x = 3,021,907.33
  5. Step 5: Solve for x
    x = 3,021,907.33/1,513.68
  6. Step 6: Final answer
    x = 1,996.40

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1.5x scale

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.