Home / 1,908.77-2,841.45-1,819.31

Finding the Fourth Proportional to 1,908.77, 2,841.45 and 1,819.31

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Solution

The fourth proportional to 1,908.77, 2,841.45 and 1,819.31 is: 2,708.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.77 : 2,841.45 = 1,819.31 : x
  2. Step 2: Convert to fraction form
    1,908.77/2,841.45 = 1,819.31/x
  3. Step 3: Cross multiply
    1,908.77x = 2,841.45 × 1,819.31
  4. Step 4: Simplify right side
    1,908.77x = 5,169,457.37
  5. Step 5: Solve for x
    x = 5,169,457.37/1,908.77
  6. Step 6: Final answer
    x = 2,708.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.