Home / 7,084.14-9,776.75-3,898.07

Finding the Fourth Proportional to 7,084.14, 9,776.75 and 3,898.07

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Solution

The fourth proportional to 7,084.14, 9,776.75 and 3,898.07 is: 5,379.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,084.14 : 9,776.75 = 3,898.07 : x
  2. Step 2: Convert to fraction form
    7,084.14/9,776.75 = 3,898.07/x
  3. Step 3: Cross multiply
    7,084.14x = 9,776.75 × 3,898.07
  4. Step 4: Simplify right side
    7,084.14x = 38,110,455.87
  5. Step 5: Solve for x
    x = 38,110,455.87/7,084.14
  6. Step 6: Final answer
    x = 5,379.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.