Home / 3,076.40-4,243.20-1,897.04

Finding the Fourth Proportional to 3,076.40, 4,243.20 and 1,897.04

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Solution

The fourth proportional to 3,076.40, 4,243.20 and 1,897.04 is: 2,616.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,076.40 : 4,243.20 = 1,897.04 : x
  2. Step 2: Convert to fraction form
    3,076.40/4,243.20 = 1,897.04/x
  3. Step 3: Cross multiply
    3,076.40x = 4,243.20 × 1,897.04
  4. Step 4: Simplify right side
    3,076.40x = 8,049,520.13
  5. Step 5: Solve for x
    x = 8,049,520.13/3,076.40
  6. Step 6: Final answer
    x = 2,616.54

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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.