Home / 7,985.28-11,979.29-4,696.58

Finding the Fourth Proportional to 7,985.28, 11,979.29 and 4,696.58

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Solution

The fourth proportional to 7,985.28, 11,979.29 and 4,696.58 is: 7,045.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,985.28 : 11,979.29 = 4,696.58 : x
  2. Step 2: Convert to fraction form
    7,985.28/11,979.29 = 4,696.58/x
  3. Step 3: Cross multiply
    7,985.28x = 11,979.29 × 4,696.58
  4. Step 4: Simplify right side
    7,985.28x = 56,261,735.52
  5. Step 5: Solve for x
    x = 56,261,735.52/7,985.28
  6. Step 6: Final answer
    x = 7,045.68

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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.