Home / 2,923.96-4,386.70-1,280.82

Finding the Fourth Proportional to 2,923.96, 4,386.70 and 1,280.82

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Solution

The fourth proportional to 2,923.96, 4,386.70 and 1,280.82 is: 1,921.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,923.96 : 4,386.70 = 1,280.82 : x
  2. Step 2: Convert to fraction form
    2,923.96/4,386.70 = 1,280.82/x
  3. Step 3: Cross multiply
    2,923.96x = 4,386.70 × 1,280.82
  4. Step 4: Simplify right side
    2,923.96x = 5,618,573.09
  5. Step 5: Solve for x
    x = 5,618,573.09/2,923.96
  6. Step 6: Final answer
    x = 1,921.56

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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.