Home / 7,721.21-10,654.42-4,364.02

Finding the Fourth Proportional to 7,721.21, 10,654.42 and 4,364.02

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Solution

The fourth proportional to 7,721.21, 10,654.42 and 4,364.02 is: 6,021.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.21 : 10,654.42 = 4,364.02 : x
  2. Step 2: Convert to fraction form
    7,721.21/10,654.42 = 4,364.02/x
  3. Step 3: Cross multiply
    7,721.21x = 10,654.42 × 4,364.02
  4. Step 4: Simplify right side
    7,721.21x = 46,496,101.97
  5. Step 5: Solve for x
    x = 46,496,101.97/7,721.21
  6. Step 6: Final answer
    x = 6,021.87

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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.