Home / 2,828.22-3,903.35-2,355.45

Finding the Fourth Proportional to 2,828.22, 3,903.35 and 2,355.45

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Solution

The fourth proportional to 2,828.22, 3,903.35 and 2,355.45 is: 3,250.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,828.22 : 3,903.35 = 2,355.45 : x
  2. Step 2: Convert to fraction form
    2,828.22/3,903.35 = 2,355.45/x
  3. Step 3: Cross multiply
    2,828.22x = 3,903.35 × 2,355.45
  4. Step 4: Simplify right side
    2,828.22x = 9,194,133.98
  5. Step 5: Solve for x
    x = 9,194,133.98/2,828.22
  6. Step 6: Final answer
    x = 3,250.86

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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.