Home / 2,926.64-4,038.12-1,982.57

Finding the Fourth Proportional to 2,926.64, 4,038.12 and 1,982.57

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Solution

The fourth proportional to 2,926.64, 4,038.12 and 1,982.57 is: 2,735.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,926.64 : 4,038.12 = 1,982.57 : x
  2. Step 2: Convert to fraction form
    2,926.64/4,038.12 = 1,982.57/x
  3. Step 3: Cross multiply
    2,926.64x = 4,038.12 × 1,982.57
  4. Step 4: Simplify right side
    2,926.64x = 8,005,855.57
  5. Step 5: Solve for x
    x = 8,005,855.57/2,926.64
  6. Step 6: Final answer
    x = 2,735.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.