Home / 3,138.09-4,707.27-1,407.93

Finding the Fourth Proportional to 3,138.09, 4,707.27 and 1,407.93

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Solution

The fourth proportional to 3,138.09, 4,707.27 and 1,407.93 is: 2,111.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138.09 : 4,707.27 = 1,407.93 : x
  2. Step 2: Convert to fraction form
    3,138.09/4,707.27 = 1,407.93/x
  3. Step 3: Cross multiply
    3,138.09x = 4,707.27 × 1,407.93
  4. Step 4: Simplify right side
    3,138.09x = 6,627,506.65
  5. Step 5: Solve for x
    x = 6,627,506.65/3,138.09
  6. Step 6: Final answer
    x = 2,111.96

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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.