Home / 3,870,642.78-5,341,669.34-2,151,792

Finding the Fourth Proportional to 3,870,642.78, 5,341,669.34 and 2,151,792

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Solution

The fourth proportional to 3,870,642.78, 5,341,669.34 and 2,151,792 is: 2,969,574.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,870,642.78 : 5,341,669.34 = 2,151,792 : x
  2. Step 2: Convert to fraction form
    3,870,642.78/5,341,669.34 = 2,151,792/x
  3. Step 3: Cross multiply
    3,870,642.78x = 5,341,669.34 × 2,151,792
  4. Step 4: Simplify right side
    3,870,642.78x = 11,494,161,341,698.32
  5. Step 5: Solve for x
    x = 11,494,161,341,698.32/3,870,642.78
  6. Step 6: Final answer
    x = 2,969,574.30

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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.