Home / 2,955.50-4,427.40-1,785.80

Finding the Fourth Proportional to 2,955.50, 4,427.40 and 1,785.80

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Solution

The fourth proportional to 2,955.50, 4,427.40 and 1,785.80 is: 2,675.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.50 : 4,427.40 = 1,785.80 : x
  2. Step 2: Convert to fraction form
    2,955.50/4,427.40 = 1,785.80/x
  3. Step 3: Cross multiply
    2,955.50x = 4,427.40 × 1,785.80
  4. Step 4: Simplify right side
    2,955.50x = 7,906,450.92
  5. Step 5: Solve for x
    x = 7,906,450.92/2,955.50
  6. Step 6: Final answer
    x = 2,675.17

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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.