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Finding the Fourth Proportional to 3,788.79, 5,683.33 and 1,015.71

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Solution

The fourth proportional to 3,788.79, 5,683.33 and 1,015.71 is: 1,523.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,788.79 : 5,683.33 = 1,015.71 : x
  2. Step 2: Convert to fraction form
    3,788.79/5,683.33 = 1,015.71/x
  3. Step 3: Cross multiply
    3,788.79x = 5,683.33 × 1,015.71
  4. Step 4: Simplify right side
    3,788.79x = 5,772,595.07
  5. Step 5: Solve for x
    x = 5,772,595.07/3,788.79
  6. Step 6: Final answer
    x = 1,523.60

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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.