Home / 2,652.71-3,968.66-1,913.74

Finding the Fourth Proportional to 2,652.71, 3,968.66 and 1,913.74

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Solution

The fourth proportional to 2,652.71, 3,968.66 and 1,913.74 is: 2,863.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,652.71 : 3,968.66 = 1,913.74 : x
  2. Step 2: Convert to fraction form
    2,652.71/3,968.66 = 1,913.74/x
  3. Step 3: Cross multiply
    2,652.71x = 3,968.66 × 1,913.74
  4. Step 4: Simplify right side
    2,652.71x = 7,594,987.87
  5. Step 5: Solve for x
    x = 7,594,987.87/2,652.71
  6. Step 6: Final answer
    x = 2,863.11

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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.