Home / 1,979.34-2,956.09-1,683.69

Finding the Fourth Proportional to 1,979.34, 2,956.09 and 1,683.69

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Solution

The fourth proportional to 1,979.34, 2,956.09 and 1,683.69 is: 2,514.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979.34 : 2,956.09 = 1,683.69 : x
  2. Step 2: Convert to fraction form
    1,979.34/2,956.09 = 1,683.69/x
  3. Step 3: Cross multiply
    1,979.34x = 2,956.09 × 1,683.69
  4. Step 4: Simplify right side
    1,979.34x = 4,977,139.17
  5. Step 5: Solve for x
    x = 4,977,139.17/1,979.34
  6. Step 6: Final answer
    x = 2,514.54

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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.