Home / 2,295.40-3,440.70-1,253.80

Finding the Fourth Proportional to 2,295.40, 3,440.70 and 1,253.80

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Solution

The fourth proportional to 2,295.40, 3,440.70 and 1,253.80 is: 1,879.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,295.40 : 3,440.70 = 1,253.80 : x
  2. Step 2: Convert to fraction form
    2,295.40/3,440.70 = 1,253.80/x
  3. Step 3: Cross multiply
    2,295.40x = 3,440.70 × 1,253.80
  4. Step 4: Simplify right side
    2,295.40x = 4,313,949.66
  5. Step 5: Solve for x
    x = 4,313,949.66/2,295.40
  6. Step 6: Final answer
    x = 1,879.39

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1.5x scale

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.