Home / 6,466.21-8,924.18-3,947.78

Finding the Fourth Proportional to 6,466.21, 8,924.18 and 3,947.78

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Solution

The fourth proportional to 6,466.21, 8,924.18 and 3,947.78 is: 5,448.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,466.21 : 8,924.18 = 3,947.78 : x
  2. Step 2: Convert to fraction form
    6,466.21/8,924.18 = 3,947.78/x
  3. Step 3: Cross multiply
    6,466.21x = 8,924.18 × 3,947.78
  4. Step 4: Simplify right side
    6,466.21x = 35,230,699.32
  5. Step 5: Solve for x
    x = 35,230,699.32/6,466.21
  6. Step 6: Final answer
    x = 5,448.43

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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.