Home / 2,929.33-4,040.94-1,985.18

Finding the Fourth Proportional to 2,929.33, 4,040.94 and 1,985.18

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Solution

The fourth proportional to 2,929.33, 4,040.94 and 1,985.18 is: 2,738.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.33 : 4,040.94 = 1,985.18 : x
  2. Step 2: Convert to fraction form
    2,929.33/4,040.94 = 1,985.18/x
  3. Step 3: Cross multiply
    2,929.33x = 4,040.94 × 1,985.18
  4. Step 4: Simplify right side
    2,929.33x = 8,022,003.37
  5. Step 5: Solve for x
    x = 8,022,003.37/2,929.33
  6. Step 6: Final answer
    x = 2,738.51

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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.