Home / 3,123.09-4,686.46-1,273.93

Finding the Fourth Proportional to 3,123.09, 4,686.46 and 1,273.93

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Solution

The fourth proportional to 3,123.09, 4,686.46 and 1,273.93 is: 1,911.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123.09 : 4,686.46 = 1,273.93 : x
  2. Step 2: Convert to fraction form
    3,123.09/4,686.46 = 1,273.93/x
  3. Step 3: Cross multiply
    3,123.09x = 4,686.46 × 1,273.93
  4. Step 4: Simplify right side
    3,123.09x = 5,970,207.09
  5. Step 5: Solve for x
    x = 5,970,207.09/3,123.09
  6. Step 6: Final answer
    x = 1,911.63

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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.