Home / 3,990,524-5,506,923.74-2,179,688

Finding the Fourth Proportional to 3,990,524, 5,506,923.74 and 2,179,688

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Solution

The fourth proportional to 3,990,524, 5,506,923.74 and 2,179,688 is: 3,007,969.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990,524 : 5,506,923.74 = 2,179,688 : x
  2. Step 2: Convert to fraction form
    3,990,524/5,506,923.74 = 2,179,688/x
  3. Step 3: Cross multiply
    3,990,524x = 5,506,923.74 × 2,179,688
  4. Step 4: Simplify right side
    3,990,524x = 12,003,375,592,993.12
  5. Step 5: Solve for x
    x = 12,003,375,592,993.12/3,990,524
  6. Step 6: Final answer
    x = 3,007,969.78

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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.