Home / 6,928.31-9,561.12-3,784.50

Finding the Fourth Proportional to 6,928.31, 9,561.12 and 3,784.50

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Solution

The fourth proportional to 6,928.31, 9,561.12 and 3,784.50 is: 5,222.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,928.31 : 9,561.12 = 3,784.50 : x
  2. Step 2: Convert to fraction form
    6,928.31/9,561.12 = 3,784.50/x
  3. Step 3: Cross multiply
    6,928.31x = 9,561.12 × 3,784.50
  4. Step 4: Simplify right side
    6,928.31x = 36,184,058.64
  5. Step 5: Solve for x
    x = 36,184,058.64/6,928.31
  6. Step 6: Final answer
    x = 5,222.64

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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.