Home / 2,040.86-2,817.57-1,295.45

Finding the Fourth Proportional to 2,040.86, 2,817.57 and 1,295.45

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Solution

The fourth proportional to 2,040.86, 2,817.57 and 1,295.45 is: 1,788.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,040.86 : 2,817.57 = 1,295.45 : x
  2. Step 2: Convert to fraction form
    2,040.86/2,817.57 = 1,295.45/x
  3. Step 3: Cross multiply
    2,040.86x = 2,817.57 × 1,295.45
  4. Step 4: Simplify right side
    2,040.86x = 3,650,006.97
  5. Step 5: Solve for x
    x = 3,650,006.97/2,040.86
  6. Step 6: Final answer
    x = 1,788.47

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1.5x scale

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.