Home / 2,927.21-4,042.25-1,881.11

Finding the Fourth Proportional to 2,927.21, 4,042.25 and 1,881.11

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Solution

The fourth proportional to 2,927.21, 4,042.25 and 1,881.11 is: 2,597.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,927.21 : 4,042.25 = 1,881.11 : x
  2. Step 2: Convert to fraction form
    2,927.21/4,042.25 = 1,881.11/x
  3. Step 3: Cross multiply
    2,927.21x = 4,042.25 × 1,881.11
  4. Step 4: Simplify right side
    2,927.21x = 7,603,901.39
  5. Step 5: Solve for x
    x = 7,603,901.39/2,927.21
  6. Step 6: Final answer
    x = 2,597.67

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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.