Home / 4,111.40-6,167.64-1,338.50

Finding the Fourth Proportional to 4,111.40, 6,167.64 and 1,338.50

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Solution

The fourth proportional to 4,111.40, 6,167.64 and 1,338.50 is: 2,007.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,111.40 : 6,167.64 = 1,338.50 : x
  2. Step 2: Convert to fraction form
    4,111.40/6,167.64 = 1,338.50/x
  3. Step 3: Cross multiply
    4,111.40x = 6,167.64 × 1,338.50
  4. Step 4: Simplify right side
    4,111.40x = 8,255,386.14
  5. Step 5: Solve for x
    x = 8,255,386.14/4,111.40
  6. Step 6: Final answer
    x = 2,007.93

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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.