Home / 3,870,670.80-5,341,708.04-2,151,820

Finding the Fourth Proportional to 3,870,670.80, 5,341,708.04 and 2,151,820

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Solution

The fourth proportional to 3,870,670.80, 5,341,708.04 and 2,151,820 is: 2,969,612.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,870,670.80 : 5,341,708.04 = 2,151,820 : x
  2. Step 2: Convert to fraction form
    3,870,670.80/5,341,708.04 = 2,151,820/x
  3. Step 3: Cross multiply
    3,870,670.80x = 5,341,708.04 × 2,151,820
  4. Step 4: Simplify right side
    3,870,670.80x = 11,494,394,194,632.80
  5. Step 5: Solve for x
    x = 11,494,394,194,632.80/3,870,670.80
  6. Step 6: Final answer
    x = 2,969,612.97

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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.