Home / 1,878.04-2,818.88-1,361.36

Finding the Fourth Proportional to 1,878.04, 2,818.88 and 1,361.36

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Solution

The fourth proportional to 1,878.04, 2,818.88 and 1,361.36 is: 2,043.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,878.04 : 2,818.88 = 1,361.36 : x
  2. Step 2: Convert to fraction form
    1,878.04/2,818.88 = 1,361.36/x
  3. Step 3: Cross multiply
    1,878.04x = 2,818.88 × 1,361.36
  4. Step 4: Simplify right side
    1,878.04x = 3,837,510.48
  5. Step 5: Solve for x
    x = 3,837,510.48/1,878.04
  6. Step 6: Final answer
    x = 2,043.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.