Home / 2,138.48-2,949.96-1,475.66

Finding the Fourth Proportional to 2,138.48, 2,949.96 and 1,475.66

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Solution

The fourth proportional to 2,138.48, 2,949.96 and 1,475.66 is: 2,035.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138.48 : 2,949.96 = 1,475.66 : x
  2. Step 2: Convert to fraction form
    2,138.48/2,949.96 = 1,475.66/x
  3. Step 3: Cross multiply
    2,138.48x = 2,949.96 × 1,475.66
  4. Step 4: Simplify right side
    2,138.48x = 4,353,137.97
  5. Step 5: Solve for x
    x = 4,353,137.97/2,138.48
  6. Step 6: Final answer
    x = 2,035.62

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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.