Home / 1,579.53-2,179.31-1,020.02

Finding the Fourth Proportional to 1,579.53, 2,179.31 and 1,020.02

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Solution

The fourth proportional to 1,579.53, 2,179.31 and 1,020.02 is: 1,407.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,579.53 : 2,179.31 = 1,020.02 : x
  2. Step 2: Convert to fraction form
    1,579.53/2,179.31 = 1,020.02/x
  3. Step 3: Cross multiply
    1,579.53x = 2,179.31 × 1,020.02
  4. Step 4: Simplify right side
    1,579.53x = 2,222,939.79
  5. Step 5: Solve for x
    x = 2,222,939.79/1,579.53
  6. Step 6: Final answer
    x = 1,407.34

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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.