Home / 3,118.07-4,677.10-1,268.78

Finding the Fourth Proportional to 3,118.07, 4,677.10 and 1,268.78

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Solution

The fourth proportional to 3,118.07, 4,677.10 and 1,268.78 is: 1,903.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.07 : 4,677.10 = 1,268.78 : x
  2. Step 2: Convert to fraction form
    3,118.07/4,677.10 = 1,268.78/x
  3. Step 3: Cross multiply
    3,118.07x = 4,677.10 × 1,268.78
  4. Step 4: Simplify right side
    3,118.07x = 5,934,184.38
  5. Step 5: Solve for x
    x = 5,934,184.38/3,118.07
  6. Step 6: Final answer
    x = 1,903.16

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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.