Home / 6,681.84-9,221.04-3,887.28

Finding the Fourth Proportional to 6,681.84, 9,221.04 and 3,887.28

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Solution

The fourth proportional to 6,681.84, 9,221.04 and 3,887.28 is: 5,364.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,681.84 : 9,221.04 = 3,887.28 : x
  2. Step 2: Convert to fraction form
    6,681.84/9,221.04 = 3,887.28/x
  3. Step 3: Cross multiply
    6,681.84x = 9,221.04 × 3,887.28
  4. Step 4: Simplify right side
    6,681.84x = 35,844,764.37
  5. Step 5: Solve for x
    x = 35,844,764.37/6,681.84
  6. Step 6: Final answer
    x = 5,364.51

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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.