Home / 2,923.73-4,378.59-2,130.96

Finding the Fourth Proportional to 2,923.73, 4,378.59 and 2,130.96

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Solution

The fourth proportional to 2,923.73, 4,378.59 and 2,130.96 is: 3,191.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,923.73 : 4,378.59 = 2,130.96 : x
  2. Step 2: Convert to fraction form
    2,923.73/4,378.59 = 2,130.96/x
  3. Step 3: Cross multiply
    2,923.73x = 4,378.59 × 2,130.96
  4. Step 4: Simplify right side
    2,923.73x = 9,330,600.15
  5. Step 5: Solve for x
    x = 9,330,600.15/2,923.73
  6. Step 6: Final answer
    x = 3,191.33

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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.