Home / 6,868.58-9,478.65-3,724.77

Finding the Fourth Proportional to 6,868.58, 9,478.65 and 3,724.77

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Solution

The fourth proportional to 6,868.58, 9,478.65 and 3,724.77 is: 5,140.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,868.58 : 9,478.65 = 3,724.77 : x
  2. Step 2: Convert to fraction form
    6,868.58/9,478.65 = 3,724.77/x
  3. Step 3: Cross multiply
    6,868.58x = 9,478.65 × 3,724.77
  4. Step 4: Simplify right side
    6,868.58x = 35,305,791.16
  5. Step 5: Solve for x
    x = 35,305,791.16/6,868.58
  6. Step 6: Final answer
    x = 5,140.19

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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.