Home / 7,985.57-11,971.39-3,302.66

Finding the Fourth Proportional to 7,985.57, 11,971.39 and 3,302.66

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Solution

The fourth proportional to 7,985.57, 11,971.39 and 3,302.66 is: 4,951.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,985.57 : 11,971.39 = 3,302.66 : x
  2. Step 2: Convert to fraction form
    7,985.57/11,971.39 = 3,302.66/x
  3. Step 3: Cross multiply
    7,985.57x = 11,971.39 × 3,302.66
  4. Step 4: Simplify right side
    7,985.57x = 39,537,362.78
  5. Step 5: Solve for x
    x = 39,537,362.78/7,985.57
  6. Step 6: Final answer
    x = 4,951.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.