Home / 3,890.01-5,830.88-2,654.36

Finding the Fourth Proportional to 3,890.01, 5,830.88 and 2,654.36

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Solution

The fourth proportional to 3,890.01, 5,830.88 and 2,654.36 is: 3,978.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.01 : 5,830.88 = 2,654.36 : x
  2. Step 2: Convert to fraction form
    3,890.01/5,830.88 = 2,654.36/x
  3. Step 3: Cross multiply
    3,890.01x = 5,830.88 × 2,654.36
  4. Step 4: Simplify right side
    3,890.01x = 15,477,212.21
  5. Step 5: Solve for x
    x = 15,477,212.21/3,890.01
  6. Step 6: Final answer
    x = 3,978.71

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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.