Home / 3,894.40-5,376-2,637.28

Finding the Fourth Proportional to 3,894.40, 5,376 and 2,637.28

Calculator

Solution

The fourth proportional to 3,894.40, 5,376 and 2,637.28 is: 3,640.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,894.40 : 5,376 = 2,637.28 : x
  2. Step 2: Convert to fraction form
    3,894.40/5,376 = 2,637.28/x
  3. Step 3: Cross multiply
    3,894.40x = 5,376 × 2,637.28
  4. Step 4: Simplify right side
    3,894.40x = 14,178,017.28
  5. Step 5: Solve for x
    x = 14,178,017.28/3,894.40
  6. Step 6: Final answer
    x = 3,640.62

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.