Home / 3,870,519.36-5,341,453.77-2,128,321.34

Finding the Fourth Proportional to 3,870,519.36, 5,341,453.77 and 2,128,321.34

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Solution

The fourth proportional to 3,870,519.36, 5,341,453.77 and 2,128,321.34 is: 2,937,158.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,870,519.36 : 5,341,453.77 = 2,128,321.34 : x
  2. Step 2: Convert to fraction form
    3,870,519.36/5,341,453.77 = 2,128,321.34/x
  3. Step 3: Cross multiply
    3,870,519.36x = 5,341,453.77 × 2,128,321.34
  4. Step 4: Simplify right side
    3,870,519.36x = 11,368,330,018,607.18
  5. Step 5: Solve for x
    x = 11,368,330,018,607.18/3,870,519.36
  6. Step 6: Final answer
    x = 2,937,158.81

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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.