Home / 3,430.49-5,145.73-1,581.26

Finding the Fourth Proportional to 3,430.49, 5,145.73 and 1,581.26

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Solution

The fourth proportional to 3,430.49, 5,145.73 and 1,581.26 is: 2,371.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.49 : 5,145.73 = 1,581.26 : x
  2. Step 2: Convert to fraction form
    3,430.49/5,145.73 = 1,581.26/x
  3. Step 3: Cross multiply
    3,430.49x = 5,145.73 × 1,581.26
  4. Step 4: Simplify right side
    3,430.49x = 8,136,707.34
  5. Step 5: Solve for x
    x = 8,136,707.34/3,430.49
  6. Step 6: Final answer
    x = 2,371.88

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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.