Home / 3,126.05-4,688.77-1,277.33

Finding the Fourth Proportional to 3,126.05, 4,688.77 and 1,277.33

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Solution

The fourth proportional to 3,126.05, 4,688.77 and 1,277.33 is: 1,915.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.05 : 4,688.77 = 1,277.33 : x
  2. Step 2: Convert to fraction form
    3,126.05/4,688.77 = 1,277.33/x
  3. Step 3: Cross multiply
    3,126.05x = 4,688.77 × 1,277.33
  4. Step 4: Simplify right side
    3,126.05x = 5,989,106.58
  5. Step 5: Solve for x
    x = 5,989,106.58/3,126.05
  6. Step 6: Final answer
    x = 1,915.87

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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.