Home / 2,178.51-3,271.08-1,361.93

Finding the Fourth Proportional to 2,178.51, 3,271.08 and 1,361.93

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Solution

The fourth proportional to 2,178.51, 3,271.08 and 1,361.93 is: 2,044.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178.51 : 3,271.08 = 1,361.93 : x
  2. Step 2: Convert to fraction form
    2,178.51/3,271.08 = 1,361.93/x
  3. Step 3: Cross multiply
    2,178.51x = 3,271.08 × 1,361.93
  4. Step 4: Simplify right side
    2,178.51x = 4,454,965.63
  5. Step 5: Solve for x
    x = 4,454,965.63/2,178.51
  6. Step 6: Final answer
    x = 2,044.96

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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.