Home / 4,145.19-6,215.64-1,679.34

Finding the Fourth Proportional to 4,145.19, 6,215.64 and 1,679.34

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Solution

The fourth proportional to 4,145.19, 6,215.64 and 1,679.34 is: 2,518.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,145.19 : 6,215.64 = 1,679.34 : x
  2. Step 2: Convert to fraction form
    4,145.19/6,215.64 = 1,679.34/x
  3. Step 3: Cross multiply
    4,145.19x = 6,215.64 × 1,679.34
  4. Step 4: Simplify right side
    4,145.19x = 10,438,172.88
  5. Step 5: Solve for x
    x = 10,438,172.88/4,145.19
  6. Step 6: Final answer
    x = 2,518.14

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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.