Home / 6,722.93-9,277.77-3,890.36

Finding the Fourth Proportional to 6,722.93, 9,277.77 and 3,890.36

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Solution

The fourth proportional to 6,722.93, 9,277.77 and 3,890.36 is: 5,368.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,722.93 : 9,277.77 = 3,890.36 : x
  2. Step 2: Convert to fraction form
    6,722.93/9,277.77 = 3,890.36/x
  3. Step 3: Cross multiply
    6,722.93x = 9,277.77 × 3,890.36
  4. Step 4: Simplify right side
    6,722.93x = 36,093,818.91
  5. Step 5: Solve for x
    x = 36,093,818.91/6,722.93
  6. Step 6: Final answer
    x = 5,368.77

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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.