Home / 4,814.32-7,220.40-2,214.72

Finding the Fourth Proportional to 4,814.32, 7,220.40 and 2,214.72

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Solution

The fourth proportional to 4,814.32, 7,220.40 and 2,214.72 is: 3,321.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,814.32 : 7,220.40 = 2,214.72 : x
  2. Step 2: Convert to fraction form
    4,814.32/7,220.40 = 2,214.72/x
  3. Step 3: Cross multiply
    4,814.32x = 7,220.40 × 2,214.72
  4. Step 4: Simplify right side
    4,814.32x = 15,991,164.29
  5. Step 5: Solve for x
    x = 15,991,164.29/4,814.32
  6. Step 6: Final answer
    x = 3,321.58

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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.