Home / 7,890.48-11,836.62-2,047.55

Finding the Fourth Proportional to 7,890.48, 11,836.62 and 2,047.55

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Solution

The fourth proportional to 7,890.48, 11,836.62 and 2,047.55 is: 3,071.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.48 : 11,836.62 = 2,047.55 : x
  2. Step 2: Convert to fraction form
    7,890.48/11,836.62 = 2,047.55/x
  3. Step 3: Cross multiply
    7,890.48x = 11,836.62 × 2,047.55
  4. Step 4: Simplify right side
    7,890.48x = 24,236,012.10
  5. Step 5: Solve for x
    x = 24,236,012.10/7,890.48
  6. Step 6: Final answer
    x = 3,071.55

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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.