Home / 1,751.30-2,626.34-518.39

Finding the Fourth Proportional to 1,751.30, 2,626.34 and 518.39

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Solution

The fourth proportional to 1,751.30, 2,626.34 and 518.39 is: 777.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,751.30 : 2,626.34 = 518.39 : x
  2. Step 2: Convert to fraction form
    1,751.30/2,626.34 = 518.39/x
  3. Step 3: Cross multiply
    1,751.30x = 2,626.34 × 518.39
  4. Step 4: Simplify right side
    1,751.30x = 1,361,455.26
  5. Step 5: Solve for x
    x = 1,361,455.26/1,751.30
  6. Step 6: Final answer
    x = 777.40

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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.