Home / 6,939.31-9,579.37-4,424.80

Finding the Fourth Proportional to 6,939.31, 9,579.37 and 4,424.80

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Solution

The fourth proportional to 6,939.31, 9,579.37 and 4,424.80 is: 6,108.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,939.31 : 9,579.37 = 4,424.80 : x
  2. Step 2: Convert to fraction form
    6,939.31/9,579.37 = 4,424.80/x
  3. Step 3: Cross multiply
    6,939.31x = 9,579.37 × 4,424.80
  4. Step 4: Simplify right side
    6,939.31x = 42,386,751.70
  5. Step 5: Solve for x
    x = 42,386,751.70/6,939.31
  6. Step 6: Final answer
    x = 6,108.21

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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.