Home / 6,421.82-8,849.67-4,555.58

Finding the Fourth Proportional to 6,421.82, 8,849.67 and 4,555.58

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Solution

The fourth proportional to 6,421.82, 8,849.67 and 4,555.58 is: 6,277.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421.82 : 8,849.67 = 4,555.58 : x
  2. Step 2: Convert to fraction form
    6,421.82/8,849.67 = 4,555.58/x
  3. Step 3: Cross multiply
    6,421.82x = 8,849.67 × 4,555.58
  4. Step 4: Simplify right side
    6,421.82x = 40,315,379.66
  5. Step 5: Solve for x
    x = 40,315,379.66/6,421.82
  6. Step 6: Final answer
    x = 6,277.87

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1.5x scale

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.