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Finding the Fourth Proportional to 3,138.39, 4,707.54 and 1,751.04

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Solution

The fourth proportional to 3,138.39, 4,707.54 and 1,751.04 is: 2,626.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138.39 : 4,707.54 = 1,751.04 : x
  2. Step 2: Convert to fraction form
    3,138.39/4,707.54 = 1,751.04/x
  3. Step 3: Cross multiply
    3,138.39x = 4,707.54 × 1,751.04
  4. Step 4: Simplify right side
    3,138.39x = 8,243,090.84
  5. Step 5: Solve for x
    x = 8,243,090.84/3,138.39
  6. Step 6: Final answer
    x = 2,626.53

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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.