Home / 2,918.54-4,027.10-1,739.18

Finding the Fourth Proportional to 2,918.54, 4,027.10 and 1,739.18

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Solution

The fourth proportional to 2,918.54, 4,027.10 and 1,739.18 is: 2,399.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.54 : 4,027.10 = 1,739.18 : x
  2. Step 2: Convert to fraction form
    2,918.54/4,027.10 = 1,739.18/x
  3. Step 3: Cross multiply
    2,918.54x = 4,027.10 × 1,739.18
  4. Step 4: Simplify right side
    2,918.54x = 7,003,851.78
  5. Step 5: Solve for x
    x = 7,003,851.78/2,918.54
  6. Step 6: Final answer
    x = 2,399.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.