Home / 2,290.24-3,435.45-1,515.21

Finding the Fourth Proportional to 2,290.24, 3,435.45 and 1,515.21

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Solution

The fourth proportional to 2,290.24, 3,435.45 and 1,515.21 is: 2,272.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,290.24 : 3,435.45 = 1,515.21 : x
  2. Step 2: Convert to fraction form
    2,290.24/3,435.45 = 1,515.21/x
  3. Step 3: Cross multiply
    2,290.24x = 3,435.45 × 1,515.21
  4. Step 4: Simplify right side
    2,290.24x = 5,205,428.19
  5. Step 5: Solve for x
    x = 5,205,428.19/2,290.24
  6. Step 6: Final answer
    x = 2,272.87

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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.