Home / 2,923.89-4,036.14-1,980.94

Finding the Fourth Proportional to 2,923.89, 4,036.14 and 1,980.94

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Solution

The fourth proportional to 2,923.89, 4,036.14 and 1,980.94 is: 2,734.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,923.89 : 4,036.14 = 1,980.94 : x
  2. Step 2: Convert to fraction form
    2,923.89/4,036.14 = 1,980.94/x
  3. Step 3: Cross multiply
    2,923.89x = 4,036.14 × 1,980.94
  4. Step 4: Simplify right side
    2,923.89x = 7,995,351.17
  5. Step 5: Solve for x
    x = 7,995,351.17/2,923.89
  6. Step 6: Final answer
    x = 2,734.49

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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.