Home / 2,966.64-4,093.90-1,918.72

Finding the Fourth Proportional to 2,966.64, 4,093.90 and 1,918.72

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Solution

The fourth proportional to 2,966.64, 4,093.90 and 1,918.72 is: 2,647.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,966.64 : 4,093.90 = 1,918.72 : x
  2. Step 2: Convert to fraction form
    2,966.64/4,093.90 = 1,918.72/x
  3. Step 3: Cross multiply
    2,966.64x = 4,093.90 × 1,918.72
  4. Step 4: Simplify right side
    2,966.64x = 7,855,047.81
  5. Step 5: Solve for x
    x = 7,855,047.81/2,966.64
  6. Step 6: Final answer
    x = 2,647.79

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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.