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Finding the Fourth Proportional to 6,842.89, 9,443.21 and 3,699.08

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Solution

The fourth proportional to 6,842.89, 9,443.21 and 3,699.08 is: 5,104.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,842.89 : 9,443.21 = 3,699.08 : x
  2. Step 2: Convert to fraction form
    6,842.89/9,443.21 = 3,699.08/x
  3. Step 3: Cross multiply
    6,842.89x = 9,443.21 × 3,699.08
  4. Step 4: Simplify right side
    6,842.89x = 34,931,158.95
  5. Step 5: Solve for x
    x = 34,931,158.95/6,842.89
  6. Step 6: Final answer
    x = 5,104.74

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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.