Home / 6,977.31-9,631.22-4,620.21

Finding the Fourth Proportional to 6,977.31, 9,631.22 and 4,620.21

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Solution

The fourth proportional to 6,977.31, 9,631.22 and 4,620.21 is: 6,377.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,977.31 : 9,631.22 = 4,620.21 : x
  2. Step 2: Convert to fraction form
    6,977.31/9,631.22 = 4,620.21/x
  3. Step 3: Cross multiply
    6,977.31x = 9,631.22 × 4,620.21
  4. Step 4: Simplify right side
    6,977.31x = 44,498,235.86
  5. Step 5: Solve for x
    x = 44,498,235.86/6,977.31
  6. Step 6: Final answer
    x = 6,377.56

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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.