Home / 4,451.81-6,678.45-1,678.73

Finding the Fourth Proportional to 4,451.81, 6,678.45 and 1,678.73

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Solution

The fourth proportional to 4,451.81, 6,678.45 and 1,678.73 is: 2,518.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,451.81 : 6,678.45 = 1,678.73 : x
  2. Step 2: Convert to fraction form
    4,451.81/6,678.45 = 1,678.73/x
  3. Step 3: Cross multiply
    4,451.81x = 6,678.45 × 1,678.73
  4. Step 4: Simplify right side
    4,451.81x = 11,211,280.98
  5. Step 5: Solve for x
    x = 11,211,280.98/4,451.81
  6. Step 6: Final answer
    x = 2,518.36

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Half scale
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Double scale
Find fourth proportional to 4,452.81, 6,679.95 and 1,679.73
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.