Home / 3,421.98-4,722.57-1,930.04

Finding the Fourth Proportional to 3,421.98, 4,722.57 and 1,930.04

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Solution

The fourth proportional to 3,421.98, 4,722.57 and 1,930.04 is: 2,663.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.98 : 4,722.57 = 1,930.04 : x
  2. Step 2: Convert to fraction form
    3,421.98/4,722.57 = 1,930.04/x
  3. Step 3: Cross multiply
    3,421.98x = 4,722.57 × 1,930.04
  4. Step 4: Simplify right side
    3,421.98x = 9,114,725.39
  5. Step 5: Solve for x
    x = 9,114,725.39/3,421.98
  6. Step 6: Final answer
    x = 2,663.58

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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.