Home / 3,837.47-5,295.21-2,158.67

Finding the Fourth Proportional to 3,837.47, 5,295.21 and 2,158.67

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Solution

The fourth proportional to 3,837.47, 5,295.21 and 2,158.67 is: 2,978.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,837.47 : 5,295.21 = 2,158.67 : x
  2. Step 2: Convert to fraction form
    3,837.47/5,295.21 = 2,158.67/x
  3. Step 3: Cross multiply
    3,837.47x = 5,295.21 × 2,158.67
  4. Step 4: Simplify right side
    3,837.47x = 11,430,610.97
  5. Step 5: Solve for x
    x = 11,430,610.97/3,837.47
  6. Step 6: Final answer
    x = 2,978.68

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1.5x scale

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.