Home / 3,030.27-4,182.96-1,911

Finding the Fourth Proportional to 3,030.27, 4,182.96 and 1,911

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Solution

The fourth proportional to 3,030.27, 4,182.96 and 1,911 is: 2,637.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,030.27 : 4,182.96 = 1,911 : x
  2. Step 2: Convert to fraction form
    3,030.27/4,182.96 = 1,911/x
  3. Step 3: Cross multiply
    3,030.27x = 4,182.96 × 1,911
  4. Step 4: Simplify right side
    3,030.27x = 7,993,636.56
  5. Step 5: Solve for x
    x = 7,993,636.56/3,030.27
  6. Step 6: Final answer
    x = 2,637.93

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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.