Home / 1,821.05-2,514.62-1,727.63

Finding the Fourth Proportional to 1,821.05, 2,514.62 and 1,727.63

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Solution

The fourth proportional to 1,821.05, 2,514.62 and 1,727.63 is: 2,385.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821.05 : 2,514.62 = 1,727.63 : x
  2. Step 2: Convert to fraction form
    1,821.05/2,514.62 = 1,727.63/x
  3. Step 3: Cross multiply
    1,821.05x = 2,514.62 × 1,727.63
  4. Step 4: Simplify right side
    1,821.05x = 4,344,332.95
  5. Step 5: Solve for x
    x = 4,344,332.95/1,821.05
  6. Step 6: Final answer
    x = 2,385.62

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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.