Home / 6,921.10-9,550.74-3,777.22

Finding the Fourth Proportional to 6,921.10, 9,550.74 and 3,777.22

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Solution

The fourth proportional to 6,921.10, 9,550.74 and 3,777.22 is: 5,212.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,921.10 : 9,550.74 = 3,777.22 : x
  2. Step 2: Convert to fraction form
    6,921.10/9,550.74 = 3,777.22/x
  3. Step 3: Cross multiply
    6,921.10x = 9,550.74 × 3,777.22
  4. Step 4: Simplify right side
    6,921.10x = 36,075,246.14
  5. Step 5: Solve for x
    x = 36,075,246.14/6,921.10
  6. Step 6: Final answer
    x = 5,212.36

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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.