Home / 2,253.80-3,108.30-1,879.76

Finding the Fourth Proportional to 2,253.80, 3,108.30 and 1,879.76

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Solution

The fourth proportional to 2,253.80, 3,108.30 and 1,879.76 is: 2,592.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,253.80 : 3,108.30 = 1,879.76 : x
  2. Step 2: Convert to fraction form
    2,253.80/3,108.30 = 1,879.76/x
  3. Step 3: Cross multiply
    2,253.80x = 3,108.30 × 1,879.76
  4. Step 4: Simplify right side
    2,253.80x = 5,842,858.01
  5. Step 5: Solve for x
    x = 5,842,858.01/2,253.80
  6. Step 6: Final answer
    x = 2,592.45

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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.