Home / 3,381.79-4,666.78-1,889.87

Finding the Fourth Proportional to 3,381.79, 4,666.78 and 1,889.87

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Solution

The fourth proportional to 3,381.79, 4,666.78 and 1,889.87 is: 2,607.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,381.79 : 4,666.78 = 1,889.87 : x
  2. Step 2: Convert to fraction form
    3,381.79/4,666.78 = 1,889.87/x
  3. Step 3: Cross multiply
    3,381.79x = 4,666.78 × 1,889.87
  4. Step 4: Simplify right side
    3,381.79x = 8,819,607.52
  5. Step 5: Solve for x
    x = 8,819,607.52/3,381.79
  6. Step 6: Final answer
    x = 2,607.97

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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.