Home / 3,109.60-4,664.30-1,029.70

Finding the Fourth Proportional to 3,109.60, 4,664.30 and 1,029.70

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Solution

The fourth proportional to 3,109.60, 4,664.30 and 1,029.70 is: 1,544.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.60 : 4,664.30 = 1,029.70 : x
  2. Step 2: Convert to fraction form
    3,109.60/4,664.30 = 1,029.70/x
  3. Step 3: Cross multiply
    3,109.60x = 4,664.30 × 1,029.70
  4. Step 4: Simplify right side
    3,109.60x = 4,802,829.71
  5. Step 5: Solve for x
    x = 4,802,829.71/3,109.60
  6. Step 6: Final answer
    x = 1,544.52

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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.