Home / 2,912.81-4,369.98-1,873.33

Finding the Fourth Proportional to 2,912.81, 4,369.98 and 1,873.33

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Solution

The fourth proportional to 2,912.81, 4,369.98 and 1,873.33 is: 2,810.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912.81 : 4,369.98 = 1,873.33 : x
  2. Step 2: Convert to fraction form
    2,912.81/4,369.98 = 1,873.33/x
  3. Step 3: Cross multiply
    2,912.81x = 4,369.98 × 1,873.33
  4. Step 4: Simplify right side
    2,912.81x = 8,186,414.63
  5. Step 5: Solve for x
    x = 8,186,414.63/2,912.81
  6. Step 6: Final answer
    x = 2,810.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.