Home / 6,985.68-9,640.32-3,842

Finding the Fourth Proportional to 6,985.68, 9,640.32 and 3,842

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Solution

The fourth proportional to 6,985.68, 9,640.32 and 3,842 is: 5,302.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,985.68 : 9,640.32 = 3,842 : x
  2. Step 2: Convert to fraction form
    6,985.68/9,640.32 = 3,842/x
  3. Step 3: Cross multiply
    6,985.68x = 9,640.32 × 3,842
  4. Step 4: Simplify right side
    6,985.68x = 37,038,109.44
  5. Step 5: Solve for x
    x = 37,038,109.44/6,985.68
  6. Step 6: Final answer
    x = 5,302.00

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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.