Home / 2,639.60-3,642.62-1,591.67

Finding the Fourth Proportional to 2,639.60, 3,642.62 and 1,591.67

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Solution

The fourth proportional to 2,639.60, 3,642.62 and 1,591.67 is: 2,196.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.60 : 3,642.62 = 1,591.67 : x
  2. Step 2: Convert to fraction form
    2,639.60/3,642.62 = 1,591.67/x
  3. Step 3: Cross multiply
    2,639.60x = 3,642.62 × 1,591.67
  4. Step 4: Simplify right side
    2,639.60x = 5,797,838.59
  5. Step 5: Solve for x
    x = 5,797,838.59/2,639.60
  6. Step 6: Final answer
    x = 2,196.48

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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.