Home / 2,140.24-2,954.52-1,433.26

Finding the Fourth Proportional to 2,140.24, 2,954.52 and 1,433.26

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Solution

The fourth proportional to 2,140.24, 2,954.52 and 1,433.26 is: 1,978.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140.24 : 2,954.52 = 1,433.26 : x
  2. Step 2: Convert to fraction form
    2,140.24/2,954.52 = 1,433.26/x
  3. Step 3: Cross multiply
    2,140.24x = 2,954.52 × 1,433.26
  4. Step 4: Simplify right side
    2,140.24x = 4,234,595.34
  5. Step 5: Solve for x
    x = 4,234,595.34/2,140.24
  6. Step 6: Final answer
    x = 1,978.56

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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.