Home / 3,934.06-5,904.74-1,987.63

Finding the Fourth Proportional to 3,934.06, 5,904.74 and 1,987.63

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Solution

The fourth proportional to 3,934.06, 5,904.74 and 1,987.63 is: 2,983.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,934.06 : 5,904.74 = 1,987.63 : x
  2. Step 2: Convert to fraction form
    3,934.06/5,904.74 = 1,987.63/x
  3. Step 3: Cross multiply
    3,934.06x = 5,904.74 × 1,987.63
  4. Step 4: Simplify right side
    3,934.06x = 11,736,428.43
  5. Step 5: Solve for x
    x = 11,736,428.43/3,934.06
  6. Step 6: Final answer
    x = 2,983.29

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1.5x scale

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.