Home / 6,891.48-9,510.35-3,907.44

Finding the Fourth Proportional to 6,891.48, 9,510.35 and 3,907.44

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Solution

The fourth proportional to 6,891.48, 9,510.35 and 3,907.44 is: 5,392.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,891.48 : 9,510.35 = 3,907.44 : x
  2. Step 2: Convert to fraction form
    6,891.48/9,510.35 = 3,907.44/x
  3. Step 3: Cross multiply
    6,891.48x = 9,510.35 × 3,907.44
  4. Step 4: Simplify right side
    6,891.48x = 37,161,102.47
  5. Step 5: Solve for x
    x = 37,161,102.47/6,891.48
  6. Step 6: Final answer
    x = 5,392.33

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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.