Home / 4,084.98-5,623.47-3,690.78

Finding the Fourth Proportional to 4,084.98, 5,623.47 and 3,690.78

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Solution

The fourth proportional to 4,084.98, 5,623.47 and 3,690.78 is: 5,080.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,084.98 : 5,623.47 = 3,690.78 : x
  2. Step 2: Convert to fraction form
    4,084.98/5,623.47 = 3,690.78/x
  3. Step 3: Cross multiply
    4,084.98x = 5,623.47 × 3,690.78
  4. Step 4: Simplify right side
    4,084.98x = 20,754,990.61
  5. Step 5: Solve for x
    x = 20,754,990.61/4,084.98
  6. Step 6: Final answer
    x = 5,080.81

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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.