Home / 2,356.20-3,534.30-1,945.80

Finding the Fourth Proportional to 2,356.20, 3,534.30 and 1,945.80

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Solution

The fourth proportional to 2,356.20, 3,534.30 and 1,945.80 is: 2,918.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,356.20 : 3,534.30 = 1,945.80 : x
  2. Step 2: Convert to fraction form
    2,356.20/3,534.30 = 1,945.80/x
  3. Step 3: Cross multiply
    2,356.20x = 3,534.30 × 1,945.80
  4. Step 4: Simplify right side
    2,356.20x = 6,877,040.94
  5. Step 5: Solve for x
    x = 6,877,040.94/2,356.20
  6. Step 6: Final answer
    x = 2,918.70

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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.