Home / 3,114.09-4,668.31-1,138.32

Finding the Fourth Proportional to 3,114.09, 4,668.31 and 1,138.32

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Solution

The fourth proportional to 3,114.09, 4,668.31 and 1,138.32 is: 1,706.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,114.09 : 4,668.31 = 1,138.32 : x
  2. Step 2: Convert to fraction form
    3,114.09/4,668.31 = 1,138.32/x
  3. Step 3: Cross multiply
    3,114.09x = 4,668.31 × 1,138.32
  4. Step 4: Simplify right side
    3,114.09x = 5,314,030.64
  5. Step 5: Solve for x
    x = 5,314,030.64/3,114.09
  6. Step 6: Final answer
    x = 1,706.45

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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.