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Finding the Fourth Proportional to 1,971.53, 2,700.98 and 1,897.67

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Solution

The fourth proportional to 1,971.53, 2,700.98 and 1,897.67 is: 2,599.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971.53 : 2,700.98 = 1,897.67 : x
  2. Step 2: Convert to fraction form
    1,971.53/2,700.98 = 1,897.67/x
  3. Step 3: Cross multiply
    1,971.53x = 2,700.98 × 1,897.67
  4. Step 4: Simplify right side
    1,971.53x = 5,125,568.72
  5. Step 5: Solve for x
    x = 5,125,568.72/1,971.53
  6. Step 6: Final answer
    x = 2,599.79

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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.