Home / 5,121.98-7,066.58-3,106.01

Finding the Fourth Proportional to 5,121.98, 7,066.58 and 3,106.01

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Solution

The fourth proportional to 5,121.98, 7,066.58 and 3,106.01 is: 4,285.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.98 : 7,066.58 = 3,106.01 : x
  2. Step 2: Convert to fraction form
    5,121.98/7,066.58 = 3,106.01/x
  3. Step 3: Cross multiply
    5,121.98x = 7,066.58 × 3,106.01
  4. Step 4: Simplify right side
    5,121.98x = 21,948,817.28
  5. Step 5: Solve for x
    x = 21,948,817.28/5,121.98
  6. Step 6: Final answer
    x = 4,285.23

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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.