Home / 2,141.64-2,954.40-1,396.04

Finding the Fourth Proportional to 2,141.64, 2,954.40 and 1,396.04

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Solution

The fourth proportional to 2,141.64, 2,954.40 and 1,396.04 is: 1,925.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,141.64 : 2,954.40 = 1,396.04 : x
  2. Step 2: Convert to fraction form
    2,141.64/2,954.40 = 1,396.04/x
  3. Step 3: Cross multiply
    2,141.64x = 2,954.40 × 1,396.04
  4. Step 4: Simplify right side
    2,141.64x = 4,124,445.80
  5. Step 5: Solve for x
    x = 4,124,445.80/2,141.64
  6. Step 6: Final answer
    x = 1,925.84

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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.