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Finding the Fourth Proportional to 1,981.91, 2,973.49 and 595.29

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Solution

The fourth proportional to 1,981.91, 2,973.49 and 595.29 is: 893.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981.91 : 2,973.49 = 595.29 : x
  2. Step 2: Convert to fraction form
    1,981.91/2,973.49 = 595.29/x
  3. Step 3: Cross multiply
    1,981.91x = 2,973.49 × 595.29
  4. Step 4: Simplify right side
    1,981.91x = 1,770,087.37
  5. Step 5: Solve for x
    x = 1,770,087.37/1,981.91
  6. Step 6: Final answer
    x = 893.12

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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.