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Finding the Fourth Proportional to 3,347.70, 5,021.76 and 1,703.80

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Solution

The fourth proportional to 3,347.70, 5,021.76 and 1,703.80 is: 2,555.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,347.70 : 5,021.76 = 1,703.80 : x
  2. Step 2: Convert to fraction form
    3,347.70/5,021.76 = 1,703.80/x
  3. Step 3: Cross multiply
    3,347.70x = 5,021.76 × 1,703.80
  4. Step 4: Simplify right side
    3,347.70x = 8,556,087.35
  5. Step 5: Solve for x
    x = 8,556,087.35/3,347.70
  6. Step 6: Final answer
    x = 2,555.81

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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.