Home / 1,515.85-2,269.42-1,357.56

Finding the Fourth Proportional to 1,515.85, 2,269.42 and 1,357.56

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Solution

The fourth proportional to 1,515.85, 2,269.42 and 1,357.56 is: 2,032.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515.85 : 2,269.42 = 1,357.56 : x
  2. Step 2: Convert to fraction form
    1,515.85/2,269.42 = 1,357.56/x
  3. Step 3: Cross multiply
    1,515.85x = 2,269.42 × 1,357.56
  4. Step 4: Simplify right side
    1,515.85x = 3,080,870.42
  5. Step 5: Solve for x
    x = 3,080,870.42/1,515.85
  6. Step 6: Final answer
    x = 2,032.44

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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.