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Finding the Fourth Proportional to 2,600.55, 3,893.67 and 1,973.97

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Solution

The fourth proportional to 2,600.55, 3,893.67 and 1,973.97 is: 2,955.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,600.55 : 3,893.67 = 1,973.97 : x
  2. Step 2: Convert to fraction form
    2,600.55/3,893.67 = 1,973.97/x
  3. Step 3: Cross multiply
    2,600.55x = 3,893.67 × 1,973.97
  4. Step 4: Simplify right side
    2,600.55x = 7,685,987.77
  5. Step 5: Solve for x
    x = 7,685,987.77/2,600.55
  6. Step 6: Final answer
    x = 2,955.52

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1.5x scale

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.