Home / 2,187,959.76-3,020,211.96-1,645,661.58

Finding the Fourth Proportional to 2,187,959.76, 3,020,211.96 and 1,645,661.58

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Solution

The fourth proportional to 2,187,959.76, 3,020,211.96 and 1,645,661.58 is: 2,271,635.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,959.76 : 3,020,211.96 = 1,645,661.58 : x
  2. Step 2: Convert to fraction form
    2,187,959.76/3,020,211.96 = 1,645,661.58/x
  3. Step 3: Cross multiply
    2,187,959.76x = 3,020,211.96 × 1,645,661.58
  4. Step 4: Simplify right side
    2,187,959.76x = 4,970,246,777,800.19
  5. Step 5: Solve for x
    x = 4,970,246,777,800.19/2,187,959.76
  6. Step 6: Final answer
    x = 2,271,635.37

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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.