Home / 7,890.84-11,836.26-2,696.76

Finding the Fourth Proportional to 7,890.84, 11,836.26 and 2,696.76

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Solution

The fourth proportional to 7,890.84, 11,836.26 and 2,696.76 is: 4,045.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.84 : 11,836.26 = 2,696.76 : x
  2. Step 2: Convert to fraction form
    7,890.84/11,836.26 = 2,696.76/x
  3. Step 3: Cross multiply
    7,890.84x = 11,836.26 × 2,696.76
  4. Step 4: Simplify right side
    7,890.84x = 31,919,552.52
  5. Step 5: Solve for x
    x = 31,919,552.52/7,890.84
  6. Step 6: Final answer
    x = 4,045.14

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Double scale
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Similar ratio
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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.