Home / 2,879.51-4,316.36-1,123.43

Finding the Fourth Proportional to 2,879.51, 4,316.36 and 1,123.43

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Solution

The fourth proportional to 2,879.51, 4,316.36 and 1,123.43 is: 1,684.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.51 : 4,316.36 = 1,123.43 : x
  2. Step 2: Convert to fraction form
    2,879.51/4,316.36 = 1,123.43/x
  3. Step 3: Cross multiply
    2,879.51x = 4,316.36 × 1,123.43
  4. Step 4: Simplify right side
    2,879.51x = 4,849,122.70
  5. Step 5: Solve for x
    x = 4,849,122.70/2,879.51
  6. Step 6: Final answer
    x = 1,684.01

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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.