Home / 7,050.49-9,729.65-3,906.68

Finding the Fourth Proportional to 7,050.49, 9,729.65 and 3,906.68

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Solution

The fourth proportional to 7,050.49, 9,729.65 and 3,906.68 is: 5,391.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,050.49 : 9,729.65 = 3,906.68 : x
  2. Step 2: Convert to fraction form
    7,050.49/9,729.65 = 3,906.68/x
  3. Step 3: Cross multiply
    7,050.49x = 9,729.65 × 3,906.68
  4. Step 4: Simplify right side
    7,050.49x = 38,010,590.18
  5. Step 5: Solve for x
    x = 38,010,590.18/7,050.49
  6. Step 6: Final answer
    x = 5,391.20

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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.