Home / 7,072.80-9,757.44-4,418.40

Finding the Fourth Proportional to 7,072.80, 9,757.44 and 4,418.40

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Solution

The fourth proportional to 7,072.80, 9,757.44 and 4,418.40 is: 6,095.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,072.80 : 9,757.44 = 4,418.40 : x
  2. Step 2: Convert to fraction form
    7,072.80/9,757.44 = 4,418.40/x
  3. Step 3: Cross multiply
    7,072.80x = 9,757.44 × 4,418.40
  4. Step 4: Simplify right side
    7,072.80x = 43,112,272.90
  5. Step 5: Solve for x
    x = 43,112,272.90/7,072.80
  6. Step 6: Final answer
    x = 6,095.50

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1.5x scale

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.