Home / 6,450.84-9,678.14-2,068.20

Finding the Fourth Proportional to 6,450.84, 9,678.14 and 2,068.20

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Solution

The fourth proportional to 6,450.84, 9,678.14 and 2,068.20 is: 3,102.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,450.84 : 9,678.14 = 2,068.20 : x
  2. Step 2: Convert to fraction form
    6,450.84/9,678.14 = 2,068.20/x
  3. Step 3: Cross multiply
    6,450.84x = 9,678.14 × 2,068.20
  4. Step 4: Simplify right side
    6,450.84x = 20,016,329.15
  5. Step 5: Solve for x
    x = 20,016,329.15/6,450.84
  6. Step 6: Final answer
    x = 3,102.90

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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.