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Finding the Fourth Proportional to 2,955.90, 4,077.39 and 1,893.90

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Solution

The fourth proportional to 2,955.90, 4,077.39 and 1,893.90 is: 2,612.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,955.90 : 4,077.39 = 1,893.90 : x
  2. Step 2: Convert to fraction form
    2,955.90/4,077.39 = 1,893.90/x
  3. Step 3: Cross multiply
    2,955.90x = 4,077.39 × 1,893.90
  4. Step 4: Simplify right side
    2,955.90x = 7,722,168.92
  5. Step 5: Solve for x
    x = 7,722,168.92/2,955.90
  6. Step 6: Final answer
    x = 2,612.46

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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.