Home / 3,160.68-4,361.80-1,816.42

Finding the Fourth Proportional to 3,160.68, 4,361.80 and 1,816.42

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Solution

The fourth proportional to 3,160.68, 4,361.80 and 1,816.42 is: 2,506.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,160.68 : 4,361.80 = 1,816.42 : x
  2. Step 2: Convert to fraction form
    3,160.68/4,361.80 = 1,816.42/x
  3. Step 3: Cross multiply
    3,160.68x = 4,361.80 × 1,816.42
  4. Step 4: Simplify right side
    3,160.68x = 7,922,860.76
  5. Step 5: Solve for x
    x = 7,922,860.76/3,160.68
  6. Step 6: Final answer
    x = 2,506.70

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1.5x scale

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.