Home / 4,817.39-7,221.37-2,478.51

Finding the Fourth Proportional to 4,817.39, 7,221.37 and 2,478.51

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Solution

The fourth proportional to 4,817.39, 7,221.37 and 2,478.51 is: 3,715.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,817.39 : 7,221.37 = 2,478.51 : x
  2. Step 2: Convert to fraction form
    4,817.39/7,221.37 = 2,478.51/x
  3. Step 3: Cross multiply
    4,817.39x = 7,221.37 × 2,478.51
  4. Step 4: Simplify right side
    4,817.39x = 17,898,231.56
  5. Step 5: Solve for x
    x = 17,898,231.56/4,817.39
  6. Step 6: Final answer
    x = 3,715.34

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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.