Home / 3,126.14-4,689.48-1,277.38

Finding the Fourth Proportional to 3,126.14, 4,689.48 and 1,277.38

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Solution

The fourth proportional to 3,126.14, 4,689.48 and 1,277.38 is: 1,916.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.14 : 4,689.48 = 1,277.38 : x
  2. Step 2: Convert to fraction form
    3,126.14/4,689.48 = 1,277.38/x
  3. Step 3: Cross multiply
    3,126.14x = 4,689.48 × 1,277.38
  4. Step 4: Simplify right side
    3,126.14x = 5,990,247.96
  5. Step 5: Solve for x
    x = 5,990,247.96/3,126.14
  6. Step 6: Final answer
    x = 1,916.18

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1.5x scale

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.