Home / 2,121,946.80-3,182,920.20-1,889,703.60

Finding the Fourth Proportional to 2,121,946.80, 3,182,920.20 and 1,889,703.60

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Solution

The fourth proportional to 2,121,946.80, 3,182,920.20 and 1,889,703.60 is: 2,834,555.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121,946.80 : 3,182,920.20 = 1,889,703.60 : x
  2. Step 2: Convert to fraction form
    2,121,946.80/3,182,920.20 = 1,889,703.60/x
  3. Step 3: Cross multiply
    2,121,946.80x = 3,182,920.20 × 1,889,703.60
  4. Step 4: Simplify right side
    2,121,946.80x = 6,014,775,760,452.72
  5. Step 5: Solve for x
    x = 6,014,775,760,452.72/2,121,946.80
  6. Step 6: Final answer
    x = 2,834,555.40

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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.