Home / 3,987.12-5,951.49-3,698.01

Finding the Fourth Proportional to 3,987.12, 5,951.49 and 3,698.01

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Solution

The fourth proportional to 3,987.12, 5,951.49 and 3,698.01 is: 5,519.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987.12 : 5,951.49 = 3,698.01 : x
  2. Step 2: Convert to fraction form
    3,987.12/5,951.49 = 3,698.01/x
  3. Step 3: Cross multiply
    3,987.12x = 5,951.49 × 3,698.01
  4. Step 4: Simplify right side
    3,987.12x = 22,008,669.53
  5. Step 5: Solve for x
    x = 22,008,669.53/3,987.12
  6. Step 6: Final answer
    x = 5,519.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.