Home / 2,254.01-3,108.81-1,939.80

Finding the Fourth Proportional to 2,254.01, 3,108.81 and 1,939.80

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Solution

The fourth proportional to 2,254.01, 3,108.81 and 1,939.80 is: 2,675.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,254.01 : 3,108.81 = 1,939.80 : x
  2. Step 2: Convert to fraction form
    2,254.01/3,108.81 = 1,939.80/x
  3. Step 3: Cross multiply
    2,254.01x = 3,108.81 × 1,939.80
  4. Step 4: Simplify right side
    2,254.01x = 6,030,488.57
  5. Step 5: Solve for x
    x = 6,030,488.57/2,254.01
  6. Step 6: Final answer
    x = 2,675.45

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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.