Home / 6,458.82-9,686.90-2,947.85

Finding the Fourth Proportional to 6,458.82, 9,686.90 and 2,947.85

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Solution

The fourth proportional to 6,458.82, 9,686.90 and 2,947.85 is: 4,421.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,458.82 : 9,686.90 = 2,947.85 : x
  2. Step 2: Convert to fraction form
    6,458.82/9,686.90 = 2,947.85/x
  3. Step 3: Cross multiply
    6,458.82x = 9,686.90 × 2,947.85
  4. Step 4: Simplify right side
    6,458.82x = 28,555,464.99
  5. Step 5: Solve for x
    x = 28,555,464.99/6,458.82
  6. Step 6: Final answer
    x = 4,421.16

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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.