Home / 2,918.72-4,027.29-1,739.90

Finding the Fourth Proportional to 2,918.72, 4,027.29 and 1,739.90

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Solution

The fourth proportional to 2,918.72, 4,027.29 and 1,739.90 is: 2,400.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.72 : 4,027.29 = 1,739.90 : x
  2. Step 2: Convert to fraction form
    2,918.72/4,027.29 = 1,739.90/x
  3. Step 3: Cross multiply
    2,918.72x = 4,027.29 × 1,739.90
  4. Step 4: Simplify right side
    2,918.72x = 7,007,085.41
  5. Step 5: Solve for x
    x = 7,007,085.41/2,918.72
  6. Step 6: Final answer
    x = 2,400.74

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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.