Home / 3,585.78-5,376.56-2,125.95

Finding the Fourth Proportional to 3,585.78, 5,376.56 and 2,125.95

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Solution

The fourth proportional to 3,585.78, 5,376.56 and 2,125.95 is: 3,187.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,585.78 : 5,376.56 = 2,125.95 : x
  2. Step 2: Convert to fraction form
    3,585.78/5,376.56 = 2,125.95/x
  3. Step 3: Cross multiply
    3,585.78x = 5,376.56 × 2,125.95
  4. Step 4: Simplify right side
    3,585.78x = 11,430,287.10
  5. Step 5: Solve for x
    x = 11,430,287.10/3,585.78
  6. Step 6: Final answer
    x = 3,187.67

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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.