Home / 2,515.35-3,771.81-1,054.11

Finding the Fourth Proportional to 2,515.35, 3,771.81 and 1,054.11

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Solution

The fourth proportional to 2,515.35, 3,771.81 and 1,054.11 is: 1,580.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.35 : 3,771.81 = 1,054.11 : x
  2. Step 2: Convert to fraction form
    2,515.35/3,771.81 = 1,054.11/x
  3. Step 3: Cross multiply
    2,515.35x = 3,771.81 × 1,054.11
  4. Step 4: Simplify right side
    2,515.35x = 3,975,892.60
  5. Step 5: Solve for x
    x = 3,975,892.60/2,515.35
  6. Step 6: Final answer
    x = 1,580.65

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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.