Home / 1,990,891.14-2,981,686.55-1,830,130.22

Finding the Fourth Proportional to 1,990,891.14, 2,981,686.55 and 1,830,130.22

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Solution

The fourth proportional to 1,990,891.14, 2,981,686.55 and 1,830,130.22 is: 2,740,920.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,891.14 : 2,981,686.55 = 1,830,130.22 : x
  2. Step 2: Convert to fraction form
    1,990,891.14/2,981,686.55 = 1,830,130.22/x
  3. Step 3: Cross multiply
    1,990,891.14x = 2,981,686.55 × 1,830,130.22
  4. Step 4: Simplify right side
    1,990,891.14x = 5,456,874,637,663.46
  5. Step 5: Solve for x
    x = 5,456,874,637,663.46/1,990,891.14
  6. Step 6: Final answer
    x = 2,740,920.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.