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Finding the Fourth Proportional to 3,898.55, 5,848.61 and 1,266.73

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Solution

The fourth proportional to 3,898.55, 5,848.61 and 1,266.73 is: 1,900.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,898.55 : 5,848.61 = 1,266.73 : x
  2. Step 2: Convert to fraction form
    3,898.55/5,848.61 = 1,266.73/x
  3. Step 3: Cross multiply
    3,898.55x = 5,848.61 × 1,266.73
  4. Step 4: Simplify right side
    3,898.55x = 7,408,588.79
  5. Step 5: Solve for x
    x = 7,408,588.79/3,898.55
  6. Step 6: Final answer
    x = 1,900.34

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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.