Home / 7,021.33-10,531.99-1,827.20

Finding the Fourth Proportional to 7,021.33, 10,531.99 and 1,827.20

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Solution

The fourth proportional to 7,021.33, 10,531.99 and 1,827.20 is: 2,740.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,021.33 : 10,531.99 = 1,827.20 : x
  2. Step 2: Convert to fraction form
    7,021.33/10,531.99 = 1,827.20/x
  3. Step 3: Cross multiply
    7,021.33x = 10,531.99 × 1,827.20
  4. Step 4: Simplify right side
    7,021.33x = 19,244,052.13
  5. Step 5: Solve for x
    x = 19,244,052.13/7,021.33
  6. Step 6: Final answer
    x = 2,740.80

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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.