Home / 2,938.24-4,054.89-1,679.50

Finding the Fourth Proportional to 2,938.24, 4,054.89 and 1,679.50

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Solution

The fourth proportional to 2,938.24, 4,054.89 and 1,679.50 is: 2,317.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.24 : 4,054.89 = 1,679.50 : x
  2. Step 2: Convert to fraction form
    2,938.24/4,054.89 = 1,679.50/x
  3. Step 3: Cross multiply
    2,938.24x = 4,054.89 × 1,679.50
  4. Step 4: Simplify right side
    2,938.24x = 6,810,187.76
  5. Step 5: Solve for x
    x = 6,810,187.76/2,938.24
  6. Step 6: Final answer
    x = 2,317.78

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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.