Home / 2,858.04-3,945.38-1,679.18

Finding the Fourth Proportional to 2,858.04, 3,945.38 and 1,679.18

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Solution

The fourth proportional to 2,858.04, 3,945.38 and 1,679.18 is: 2,318.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,858.04 : 3,945.38 = 1,679.18 : x
  2. Step 2: Convert to fraction form
    2,858.04/3,945.38 = 1,679.18/x
  3. Step 3: Cross multiply
    2,858.04x = 3,945.38 × 1,679.18
  4. Step 4: Simplify right side
    2,858.04x = 6,625,003.19
  5. Step 5: Solve for x
    x = 6,625,003.19/2,858.04
  6. Step 6: Final answer
    x = 2,318.02

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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.