Home / 6,456.21-8,907.45-3,937.41

Finding the Fourth Proportional to 6,456.21, 8,907.45 and 3,937.41

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Solution

The fourth proportional to 6,456.21, 8,907.45 and 3,937.41 is: 5,432.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,456.21 : 8,907.45 = 3,937.41 : x
  2. Step 2: Convert to fraction form
    6,456.21/8,907.45 = 3,937.41/x
  3. Step 3: Cross multiply
    6,456.21x = 8,907.45 × 3,937.41
  4. Step 4: Simplify right side
    6,456.21x = 35,072,282.70
  5. Step 5: Solve for x
    x = 35,072,282.70/6,456.21
  6. Step 6: Final answer
    x = 5,432.33

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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.