Home / 3,680.51-5,080.98-2,839.32

Finding the Fourth Proportional to 3,680.51, 5,080.98 and 2,839.32

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Solution

The fourth proportional to 3,680.51, 5,080.98 and 2,839.32 is: 3,919.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.51 : 5,080.98 = 2,839.32 : x
  2. Step 2: Convert to fraction form
    3,680.51/5,080.98 = 2,839.32/x
  3. Step 3: Cross multiply
    3,680.51x = 5,080.98 × 2,839.32
  4. Step 4: Simplify right side
    3,680.51x = 14,426,522.81
  5. Step 5: Solve for x
    x = 14,426,522.81/3,680.51
  6. Step 6: Final answer
    x = 3,919.71

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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.