Home / 1,515.08-2,271.68-1,028.48

Finding the Fourth Proportional to 1,515.08, 2,271.68 and 1,028.48

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Solution

The fourth proportional to 1,515.08, 2,271.68 and 1,028.48 is: 1,542.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515.08 : 2,271.68 = 1,028.48 : x
  2. Step 2: Convert to fraction form
    1,515.08/2,271.68 = 1,028.48/x
  3. Step 3: Cross multiply
    1,515.08x = 2,271.68 × 1,028.48
  4. Step 4: Simplify right side
    1,515.08x = 2,336,377.45
  5. Step 5: Solve for x
    x = 2,336,377.45/1,515.08
  6. Step 6: Final answer
    x = 1,542.08

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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.