Home / 6,921.80-9,551.76-4,269.48

Finding the Fourth Proportional to 6,921.80, 9,551.76 and 4,269.48

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Solution

The fourth proportional to 6,921.80, 9,551.76 and 4,269.48 is: 5,891.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921.80 : 9,551.76 = 4,269.48 : x
  2. Step 2: Convert to fraction form
    6,921.80/9,551.76 = 4,269.48/x
  3. Step 3: Cross multiply
    6,921.80x = 9,551.76 × 4,269.48
  4. Step 4: Simplify right side
    6,921.80x = 40,781,048.28
  5. Step 5: Solve for x
    x = 40,781,048.28/6,921.80
  6. Step 6: Final answer
    x = 5,891.68

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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.