Home / 3,430.31-5,141.36-1,579.56

Finding the Fourth Proportional to 3,430.31, 5,141.36 and 1,579.56

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Solution

The fourth proportional to 3,430.31, 5,141.36 and 1,579.56 is: 2,367.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.31 : 5,141.36 = 1,579.56 : x
  2. Step 2: Convert to fraction form
    3,430.31/5,141.36 = 1,579.56/x
  3. Step 3: Cross multiply
    3,430.31x = 5,141.36 × 1,579.56
  4. Step 4: Simplify right side
    3,430.31x = 8,121,086.60
  5. Step 5: Solve for x
    x = 8,121,086.60/3,430.31
  6. Step 6: Final answer
    x = 2,367.45

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1.5x scale

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.