Home / 2,260.40-3,118.20-1,914.80

Finding the Fourth Proportional to 2,260.40, 3,118.20 and 1,914.80

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Solution

The fourth proportional to 2,260.40, 3,118.20 and 1,914.80 is: 2,641.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,260.40 : 3,118.20 = 1,914.80 : x
  2. Step 2: Convert to fraction form
    2,260.40/3,118.20 = 1,914.80/x
  3. Step 3: Cross multiply
    2,260.40x = 3,118.20 × 1,914.80
  4. Step 4: Simplify right side
    2,260.40x = 5,970,729.36
  5. Step 5: Solve for x
    x = 5,970,729.36/2,260.40
  6. Step 6: Final answer
    x = 2,641.45

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1.5x scale

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.