Home / 3,881.76-5,356.65-2,113.36

Finding the Fourth Proportional to 3,881.76, 5,356.65 and 2,113.36

Calculator

Solution

The fourth proportional to 3,881.76, 5,356.65 and 2,113.36 is: 2,916.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.76 : 5,356.65 = 2,113.36 : x
  2. Step 2: Convert to fraction form
    3,881.76/5,356.65 = 2,113.36/x
  3. Step 3: Cross multiply
    3,881.76x = 5,356.65 × 2,113.36
  4. Step 4: Simplify right side
    3,881.76x = 11,320,529.84
  5. Step 5: Solve for x
    x = 11,320,529.84/3,881.76
  6. Step 6: Final answer
    x = 2,916.34

Related Problems

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.