Home / 4,619.90-6,923.21-1,986.66

Finding the Fourth Proportional to 4,619.90, 6,923.21 and 1,986.66

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Solution

The fourth proportional to 4,619.90, 6,923.21 and 1,986.66 is: 2,977.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,619.90 : 6,923.21 = 1,986.66 : x
  2. Step 2: Convert to fraction form
    4,619.90/6,923.21 = 1,986.66/x
  3. Step 3: Cross multiply
    4,619.90x = 6,923.21 × 1,986.66
  4. Step 4: Simplify right side
    4,619.90x = 13,754,054.45
  5. Step 5: Solve for x
    x = 13,754,054.45/4,619.90
  6. Step 6: Final answer
    x = 2,977.13

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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.