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Finding the Fourth Proportional to 3,030.69, 4,180.94 and 1,968.38

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Solution

The fourth proportional to 3,030.69, 4,180.94 and 1,968.38 is: 2,715.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,030.69 : 4,180.94 = 1,968.38 : x
  2. Step 2: Convert to fraction form
    3,030.69/4,180.94 = 1,968.38/x
  3. Step 3: Cross multiply
    3,030.69x = 4,180.94 × 1,968.38
  4. Step 4: Simplify right side
    3,030.69x = 8,229,678.68
  5. Step 5: Solve for x
    x = 8,229,678.68/3,030.69
  6. Step 6: Final answer
    x = 2,715.45

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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.