Home / 7,890.80-11,836.34-2,047.26

Finding the Fourth Proportional to 7,890.80, 11,836.34 and 2,047.26

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Solution

The fourth proportional to 7,890.80, 11,836.34 and 2,047.26 is: 3,070.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,890.80 : 11,836.34 = 2,047.26 : x
  2. Step 2: Convert to fraction form
    7,890.80/11,836.34 = 2,047.26/x
  3. Step 3: Cross multiply
    7,890.80x = 11,836.34 × 2,047.26
  4. Step 4: Simplify right side
    7,890.80x = 24,232,055.19
  5. Step 5: Solve for x
    x = 24,232,055.19/7,890.80
  6. Step 6: Final answer
    x = 3,070.93

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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.