Home / 2,293.60-3,165.78-1,409.80

Finding the Fourth Proportional to 2,293.60, 3,165.78 and 1,409.80

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Solution

The fourth proportional to 2,293.60, 3,165.78 and 1,409.80 is: 1,945.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,293.60 : 3,165.78 = 1,409.80 : x
  2. Step 2: Convert to fraction form
    2,293.60/3,165.78 = 1,409.80/x
  3. Step 3: Cross multiply
    2,293.60x = 3,165.78 × 1,409.80
  4. Step 4: Simplify right side
    2,293.60x = 4,463,116.64
  5. Step 5: Solve for x
    x = 4,463,116.64/2,293.60
  6. Step 6: Final answer
    x = 1,945.90

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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.