Home / 5,319.63-7,341.21-2,961.90

Finding the Fourth Proportional to 5,319.63, 7,341.21 and 2,961.90

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Solution

The fourth proportional to 5,319.63, 7,341.21 and 2,961.90 is: 4,087.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,319.63 : 7,341.21 = 2,961.90 : x
  2. Step 2: Convert to fraction form
    5,319.63/7,341.21 = 2,961.90/x
  3. Step 3: Cross multiply
    5,319.63x = 7,341.21 × 2,961.90
  4. Step 4: Simplify right side
    5,319.63x = 21,743,929.90
  5. Step 5: Solve for x
    x = 21,743,929.90/5,319.63
  6. Step 6: Final answer
    x = 4,087.49

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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.