Home / 7,084.12-9,776.26-3,897.36

Finding the Fourth Proportional to 7,084.12, 9,776.26 and 3,897.36

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Solution

The fourth proportional to 7,084.12, 9,776.26 and 3,897.36 is: 5,378.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,084.12 : 9,776.26 = 3,897.36 : x
  2. Step 2: Convert to fraction form
    7,084.12/9,776.26 = 3,897.36/x
  3. Step 3: Cross multiply
    7,084.12x = 9,776.26 × 3,897.36
  4. Step 4: Simplify right side
    7,084.12x = 38,101,604.67
  5. Step 5: Solve for x
    x = 38,101,604.67/7,084.12
  6. Step 6: Final answer
    x = 5,378.45

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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.