Home / 3,123.15-4,684.74-1,273.77

Finding the Fourth Proportional to 3,123.15, 4,684.74 and 1,273.77

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Solution

The fourth proportional to 3,123.15, 4,684.74 and 1,273.77 is: 1,910.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123.15 : 4,684.74 = 1,273.77 : x
  2. Step 2: Convert to fraction form
    3,123.15/4,684.74 = 1,273.77/x
  3. Step 3: Cross multiply
    3,123.15x = 4,684.74 × 1,273.77
  4. Step 4: Simplify right side
    3,123.15x = 5,967,281.27
  5. Step 5: Solve for x
    x = 5,967,281.27/3,123.15
  6. Step 6: Final answer
    x = 1,910.66

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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.