Home / 4,192.98-6,290.40-1,419.42

Finding the Fourth Proportional to 4,192.98, 6,290.40 and 1,419.42

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Solution

The fourth proportional to 4,192.98, 6,290.40 and 1,419.42 is: 2,129.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,192.98 : 6,290.40 = 1,419.42 : x
  2. Step 2: Convert to fraction form
    4,192.98/6,290.40 = 1,419.42/x
  3. Step 3: Cross multiply
    4,192.98x = 6,290.40 × 1,419.42
  4. Step 4: Simplify right side
    4,192.98x = 8,928,719.57
  5. Step 5: Solve for x
    x = 8,928,719.57/4,192.98
  6. Step 6: Final answer
    x = 2,129.44

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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.