Home / 1,968.08-2,727.65-1,931.18

Finding the Fourth Proportional to 1,968.08, 2,727.65 and 1,931.18

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Solution

The fourth proportional to 1,968.08, 2,727.65 and 1,931.18 is: 2,676.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968.08 : 2,727.65 = 1,931.18 : x
  2. Step 2: Convert to fraction form
    1,968.08/2,727.65 = 1,931.18/x
  3. Step 3: Cross multiply
    1,968.08x = 2,727.65 × 1,931.18
  4. Step 4: Simplify right side
    1,968.08x = 5,267,583.13
  5. Step 5: Solve for x
    x = 5,267,583.13/1,968.08
  6. Step 6: Final answer
    x = 2,676.51

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.