Home / 3,422.42-4,722.93-1,930.35

Finding the Fourth Proportional to 3,422.42, 4,722.93 and 1,930.35

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Solution

The fourth proportional to 3,422.42, 4,722.93 and 1,930.35 is: 2,663.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.42 : 4,722.93 = 1,930.35 : x
  2. Step 2: Convert to fraction form
    3,422.42/4,722.93 = 1,930.35/x
  3. Step 3: Cross multiply
    3,422.42x = 4,722.93 × 1,930.35
  4. Step 4: Simplify right side
    3,422.42x = 9,116,907.93
  5. Step 5: Solve for x
    x = 9,116,907.93/3,422.42
  6. Step 6: Final answer
    x = 2,663.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.