Home / 2,045.85-2,821.89-1,260.36

Finding the Fourth Proportional to 2,045.85, 2,821.89 and 1,260.36

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Solution

The fourth proportional to 2,045.85, 2,821.89 and 1,260.36 is: 1,738.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,045.85 : 2,821.89 = 1,260.36 : x
  2. Step 2: Convert to fraction form
    2,045.85/2,821.89 = 1,260.36/x
  3. Step 3: Cross multiply
    2,045.85x = 2,821.89 × 1,260.36
  4. Step 4: Simplify right side
    2,045.85x = 3,556,597.28
  5. Step 5: Solve for x
    x = 3,556,597.28/2,045.85
  6. Step 6: Final answer
    x = 1,738.44

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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.