Home / 3,430.50-5,120.36-3,347.64

Finding the Fourth Proportional to 3,430.50, 5,120.36 and 3,347.64

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Solution

The fourth proportional to 3,430.50, 5,120.36 and 3,347.64 is: 4,996.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.50 : 5,120.36 = 3,347.64 : x
  2. Step 2: Convert to fraction form
    3,430.50/5,120.36 = 3,347.64/x
  3. Step 3: Cross multiply
    3,430.50x = 5,120.36 × 3,347.64
  4. Step 4: Simplify right side
    3,430.50x = 17,141,105.21
  5. Step 5: Solve for x
    x = 17,141,105.21/3,430.50
  6. Step 6: Final answer
    x = 4,996.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.