Home / 6,421.40-9,631.55-2,525.79

Finding the Fourth Proportional to 6,421.40, 9,631.55 and 2,525.79

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Solution

The fourth proportional to 6,421.40, 9,631.55 and 2,525.79 is: 3,788.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421.40 : 9,631.55 = 2,525.79 : x
  2. Step 2: Convert to fraction form
    6,421.40/9,631.55 = 2,525.79/x
  3. Step 3: Cross multiply
    6,421.40x = 9,631.55 × 2,525.79
  4. Step 4: Simplify right side
    6,421.40x = 24,327,260.05
  5. Step 5: Solve for x
    x = 24,327,260.05/6,421.40
  6. Step 6: Final answer
    x = 3,788.47

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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.