Home / 6,464.16-8,921.51-3,947.73

Finding the Fourth Proportional to 6,464.16, 8,921.51 and 3,947.73

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Solution

The fourth proportional to 6,464.16, 8,921.51 and 3,947.73 is: 5,448.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,464.16 : 8,921.51 = 3,947.73 : x
  2. Step 2: Convert to fraction form
    6,464.16/8,921.51 = 3,947.73/x
  3. Step 3: Cross multiply
    6,464.16x = 8,921.51 × 3,947.73
  4. Step 4: Simplify right side
    6,464.16x = 35,219,712.67
  5. Step 5: Solve for x
    x = 35,219,712.67/6,464.16
  6. Step 6: Final answer
    x = 5,448.46

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Half scale
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Double scale
Find fourth proportional to 6,465.16, 8,922.89 and 3,948.73
Similar ratio
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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.