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Finding the Fourth Proportional to 2,600.88, 3,897.76 and 955.84

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Solution

The fourth proportional to 2,600.88, 3,897.76 and 955.84 is: 1,432.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,600.88 : 3,897.76 = 955.84 : x
  2. Step 2: Convert to fraction form
    2,600.88/3,897.76 = 955.84/x
  3. Step 3: Cross multiply
    2,600.88x = 3,897.76 × 955.84
  4. Step 4: Simplify right side
    2,600.88x = 3,725,634.92
  5. Step 5: Solve for x
    x = 3,725,634.92/2,600.88
  6. Step 6: Final answer
    x = 1,432.45

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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.