Home / 3,100.18-4,277.73-1,858.18

Finding the Fourth Proportional to 3,100.18, 4,277.73 and 1,858.18

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Solution

The fourth proportional to 3,100.18, 4,277.73 and 1,858.18 is: 2,563.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,100.18 : 4,277.73 = 1,858.18 : x
  2. Step 2: Convert to fraction form
    3,100.18/4,277.73 = 1,858.18/x
  3. Step 3: Cross multiply
    3,100.18x = 4,277.73 × 1,858.18
  4. Step 4: Simplify right side
    3,100.18x = 7,948,792.33
  5. Step 5: Solve for x
    x = 7,948,792.33/3,100.18
  6. Step 6: Final answer
    x = 2,563.98

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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.