Home / 4,451.39-6,678.63-1,678.86

Finding the Fourth Proportional to 4,451.39, 6,678.63 and 1,678.86

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Solution

The fourth proportional to 4,451.39, 6,678.63 and 1,678.86 is: 2,518.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,451.39 : 6,678.63 = 1,678.86 : x
  2. Step 2: Convert to fraction form
    4,451.39/6,678.63 = 1,678.86/x
  3. Step 3: Cross multiply
    4,451.39x = 6,678.63 × 1,678.86
  4. Step 4: Simplify right side
    4,451.39x = 11,212,484.76
  5. Step 5: Solve for x
    x = 11,212,484.76/4,451.39
  6. Step 6: Final answer
    x = 2,518.87

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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.