Home / 7,970.22-11,961.81-4,075.74

Finding the Fourth Proportional to 7,970.22, 11,961.81 and 4,075.74

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Solution

The fourth proportional to 7,970.22, 11,961.81 and 4,075.74 is: 6,116.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,970.22 : 11,961.81 = 4,075.74 : x
  2. Step 2: Convert to fraction form
    7,970.22/11,961.81 = 4,075.74/x
  3. Step 3: Cross multiply
    7,970.22x = 11,961.81 × 4,075.74
  4. Step 4: Simplify right side
    7,970.22x = 48,753,227.49
  5. Step 5: Solve for x
    x = 48,753,227.49/7,970.22
  6. Step 6: Final answer
    x = 6,116.92

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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.