Home / 1,579.73-2,181.47-1,021.14

Finding the Fourth Proportional to 1,579.73, 2,181.47 and 1,021.14

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Solution

The fourth proportional to 1,579.73, 2,181.47 and 1,021.14 is: 1,410.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,579.73 : 2,181.47 = 1,021.14 : x
  2. Step 2: Convert to fraction form
    1,579.73/2,181.47 = 1,021.14/x
  3. Step 3: Cross multiply
    1,579.73x = 2,181.47 × 1,021.14
  4. Step 4: Simplify right side
    1,579.73x = 2,227,581.17
  5. Step 5: Solve for x
    x = 2,227,581.17/1,579.73
  6. Step 6: Final answer
    x = 1,410.11

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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.