Home / 1,865.09-2,573.66-1,025.79

Finding the Fourth Proportional to 1,865.09, 2,573.66 and 1,025.79

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Solution

The fourth proportional to 1,865.09, 2,573.66 and 1,025.79 is: 1,415.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865.09 : 2,573.66 = 1,025.79 : x
  2. Step 2: Convert to fraction form
    1,865.09/2,573.66 = 1,025.79/x
  3. Step 3: Cross multiply
    1,865.09x = 2,573.66 × 1,025.79
  4. Step 4: Simplify right side
    1,865.09x = 2,640,034.69
  5. Step 5: Solve for x
    x = 2,640,034.69/1,865.09
  6. Step 6: Final answer
    x = 1,415.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.