Home / 1,515.15-2,269.08-1,026.72

Finding the Fourth Proportional to 1,515.15, 2,269.08 and 1,026.72

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Solution

The fourth proportional to 1,515.15, 2,269.08 and 1,026.72 is: 1,537.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515.15 : 2,269.08 = 1,026.72 : x
  2. Step 2: Convert to fraction form
    1,515.15/2,269.08 = 1,026.72/x
  3. Step 3: Cross multiply
    1,515.15x = 2,269.08 × 1,026.72
  4. Step 4: Simplify right side
    1,515.15x = 2,329,709.82
  5. Step 5: Solve for x
    x = 2,329,709.82/1,515.15
  6. Step 6: Final answer
    x = 1,537.61

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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.