Home / 1,659.40-2,289.30-1,029.48

Finding the Fourth Proportional to 1,659.40, 2,289.30 and 1,029.48

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Solution

The fourth proportional to 1,659.40, 2,289.30 and 1,029.48 is: 1,420.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,659.40 : 2,289.30 = 1,029.48 : x
  2. Step 2: Convert to fraction form
    1,659.40/2,289.30 = 1,029.48/x
  3. Step 3: Cross multiply
    1,659.40x = 2,289.30 × 1,029.48
  4. Step 4: Simplify right side
    1,659.40x = 2,356,788.56
  5. Step 5: Solve for x
    x = 2,356,788.56/1,659.40
  6. Step 6: Final answer
    x = 1,420.27

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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.