Home / 1,515.36-2,088.66-1,199.15

Finding the Fourth Proportional to 1,515.36, 2,088.66 and 1,199.15

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Solution

The fourth proportional to 1,515.36, 2,088.66 and 1,199.15 is: 1,652.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515.36 : 2,088.66 = 1,199.15 : x
  2. Step 2: Convert to fraction form
    1,515.36/2,088.66 = 1,199.15/x
  3. Step 3: Cross multiply
    1,515.36x = 2,088.66 × 1,199.15
  4. Step 4: Simplify right side
    1,515.36x = 2,504,626.90
  5. Step 5: Solve for x
    x = 2,504,626.90/1,515.36
  6. Step 6: Final answer
    x = 1,652.83

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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.