Home / 2,133.78-3,182.06-1,897.80

Finding the Fourth Proportional to 2,133.78, 3,182.06 and 1,897.80

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Solution

The fourth proportional to 2,133.78, 3,182.06 and 1,897.80 is: 2,830.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,133.78 : 3,182.06 = 1,897.80 : x
  2. Step 2: Convert to fraction form
    2,133.78/3,182.06 = 1,897.80/x
  3. Step 3: Cross multiply
    2,133.78x = 3,182.06 × 1,897.80
  4. Step 4: Simplify right side
    2,133.78x = 6,038,903.98
  5. Step 5: Solve for x
    x = 6,038,903.98/2,133.78
  6. Step 6: Final answer
    x = 2,830.14

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.