Home / 4,421.72-6,634.91-1,958.24

Finding the Fourth Proportional to 4,421.72, 6,634.91 and 1,958.24

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Solution

The fourth proportional to 4,421.72, 6,634.91 and 1,958.24 is: 2,938.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,421.72 : 6,634.91 = 1,958.24 : x
  2. Step 2: Convert to fraction form
    4,421.72/6,634.91 = 1,958.24/x
  3. Step 3: Cross multiply
    4,421.72x = 6,634.91 × 1,958.24
  4. Step 4: Simplify right side
    4,421.72x = 12,992,767.64
  5. Step 5: Solve for x
    x = 12,992,767.64/4,421.72
  6. Step 6: Final answer
    x = 2,938.40

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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.