Home / 3,460.81-5,192.03-1,120.81

Finding the Fourth Proportional to 3,460.81, 5,192.03 and 1,120.81

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Solution

The fourth proportional to 3,460.81, 5,192.03 and 1,120.81 is: 1,681.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,460.81 : 5,192.03 = 1,120.81 : x
  2. Step 2: Convert to fraction form
    3,460.81/5,192.03 = 1,120.81/x
  3. Step 3: Cross multiply
    3,460.81x = 5,192.03 × 1,120.81
  4. Step 4: Simplify right side
    3,460.81x = 5,819,288.44
  5. Step 5: Solve for x
    x = 5,819,288.44/3,460.81
  6. Step 6: Final answer
    x = 1,681.48

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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.