Home / 1,958.05-2,937.37-918.14

Finding the Fourth Proportional to 1,958.05, 2,937.37 and 918.14

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Solution

The fourth proportional to 1,958.05, 2,937.37 and 918.14 is: 1,377.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,958.05 : 2,937.37 = 918.14 : x
  2. Step 2: Convert to fraction form
    1,958.05/2,937.37 = 918.14/x
  3. Step 3: Cross multiply
    1,958.05x = 2,937.37 × 918.14
  4. Step 4: Simplify right side
    1,958.05x = 2,696,916.89
  5. Step 5: Solve for x
    x = 2,696,916.89/1,958.05
  6. Step 6: Final answer
    x = 1,377.35

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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.