Home / 5,107.93-7,052.21-3,986.89

Finding the Fourth Proportional to 5,107.93, 7,052.21 and 3,986.89

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Solution

The fourth proportional to 5,107.93, 7,052.21 and 3,986.89 is: 5,504.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,107.93 : 7,052.21 = 3,986.89 : x
  2. Step 2: Convert to fraction form
    5,107.93/7,052.21 = 3,986.89/x
  3. Step 3: Cross multiply
    5,107.93x = 7,052.21 × 3,986.89
  4. Step 4: Simplify right side
    5,107.93x = 28,116,385.53
  5. Step 5: Solve for x
    x = 28,116,385.53/5,107.93
  6. Step 6: Final answer
    x = 5,504.46

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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.