Home / 5,214.57-7,821.64-1,927.59

Finding the Fourth Proportional to 5,214.57, 7,821.64 and 1,927.59

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Solution

The fourth proportional to 5,214.57, 7,821.64 and 1,927.59 is: 2,891.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,214.57 : 7,821.64 = 1,927.59 : x
  2. Step 2: Convert to fraction form
    5,214.57/7,821.64 = 1,927.59/x
  3. Step 3: Cross multiply
    5,214.57x = 7,821.64 × 1,927.59
  4. Step 4: Simplify right side
    5,214.57x = 15,076,915.05
  5. Step 5: Solve for x
    x = 15,076,915.05/5,214.57
  6. Step 6: Final answer
    x = 2,891.31

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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.