Home / 3,878,427.77-5,352,020.20-2,135,756.46

Finding the Fourth Proportional to 3,878,427.77, 5,352,020.20 and 2,135,756.46

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Solution

The fourth proportional to 3,878,427.77, 5,352,020.20 and 2,135,756.46 is: 2,947,228.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878,427.77 : 5,352,020.20 = 2,135,756.46 : x
  2. Step 2: Convert to fraction form
    3,878,427.77/5,352,020.20 = 2,135,756.46/x
  3. Step 3: Cross multiply
    3,878,427.77x = 5,352,020.20 × 2,135,756.46
  4. Step 4: Simplify right side
    3,878,427.77x = 11,430,611,716,200.49
  5. Step 5: Solve for x
    x = 11,430,611,716,200.49/3,878,427.77
  6. Step 6: Final answer
    x = 2,947,228.21

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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.