Home / 6,921.05-9,550.71-3,777.23

Finding the Fourth Proportional to 6,921.05, 9,550.71 and 3,777.23

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Solution

The fourth proportional to 6,921.05, 9,550.71 and 3,777.23 is: 5,212.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921.05 : 9,550.71 = 3,777.23 : x
  2. Step 2: Convert to fraction form
    6,921.05/9,550.71 = 3,777.23/x
  3. Step 3: Cross multiply
    6,921.05x = 9,550.71 × 3,777.23
  4. Step 4: Simplify right side
    6,921.05x = 36,075,252.21
  5. Step 5: Solve for x
    x = 36,075,252.21/6,921.05
  6. Step 6: Final answer
    x = 5,212.40

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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.