Home / 2,431.32-3,354.62-1,368.88

Finding the Fourth Proportional to 2,431.32, 3,354.62 and 1,368.88

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Solution

The fourth proportional to 2,431.32, 3,354.62 and 1,368.88 is: 1,888.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.32 : 3,354.62 = 1,368.88 : x
  2. Step 2: Convert to fraction form
    2,431.32/3,354.62 = 1,368.88/x
  3. Step 3: Cross multiply
    2,431.32x = 3,354.62 × 1,368.88
  4. Step 4: Simplify right side
    2,431.32x = 4,592,072.23
  5. Step 5: Solve for x
    x = 4,592,072.23/2,431.32
  6. Step 6: Final answer
    x = 1,888.72

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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.