Home / 2,967.21-4,451.84-1,118.85

Finding the Fourth Proportional to 2,967.21, 4,451.84 and 1,118.85

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Solution

The fourth proportional to 2,967.21, 4,451.84 and 1,118.85 is: 1,678.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,967.21 : 4,451.84 = 1,118.85 : x
  2. Step 2: Convert to fraction form
    2,967.21/4,451.84 = 1,118.85/x
  3. Step 3: Cross multiply
    2,967.21x = 4,451.84 × 1,118.85
  4. Step 4: Simplify right side
    2,967.21x = 4,980,948.13
  5. Step 5: Solve for x
    x = 4,980,948.13/2,967.21
  6. Step 6: Final answer
    x = 1,678.67

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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.