Home / 3,890.35-5,832.01-1,423.45

Finding the Fourth Proportional to 3,890.35, 5,832.01 and 1,423.45

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Solution

The fourth proportional to 3,890.35, 5,832.01 and 1,423.45 is: 2,133.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.35 : 5,832.01 = 1,423.45 : x
  2. Step 2: Convert to fraction form
    3,890.35/5,832.01 = 1,423.45/x
  3. Step 3: Cross multiply
    3,890.35x = 5,832.01 × 1,423.45
  4. Step 4: Simplify right side
    3,890.35x = 8,301,574.63
  5. Step 5: Solve for x
    x = 8,301,574.63/3,890.35
  6. Step 6: Final answer
    x = 2,133.89

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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.