Home / 1,971.78-2,701.33-1,897.92

Finding the Fourth Proportional to 1,971.78, 2,701.33 and 1,897.92

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Solution

The fourth proportional to 1,971.78, 2,701.33 and 1,897.92 is: 2,600.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971.78 : 2,701.33 = 1,897.92 : x
  2. Step 2: Convert to fraction form
    1,971.78/2,701.33 = 1,897.92/x
  3. Step 3: Cross multiply
    1,971.78x = 2,701.33 × 1,897.92
  4. Step 4: Simplify right side
    1,971.78x = 5,126,898.74
  5. Step 5: Solve for x
    x = 5,126,898.74/1,971.78
  6. Step 6: Final answer
    x = 2,600.14

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.