Home / 2,431.42-3,644.58-1,277.98

Finding the Fourth Proportional to 2,431.42, 3,644.58 and 1,277.98

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Solution

The fourth proportional to 2,431.42, 3,644.58 and 1,277.98 is: 1,915.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.42 : 3,644.58 = 1,277.98 : x
  2. Step 2: Convert to fraction form
    2,431.42/3,644.58 = 1,277.98/x
  3. Step 3: Cross multiply
    2,431.42x = 3,644.58 × 1,277.98
  4. Step 4: Simplify right side
    2,431.42x = 4,657,700.35
  5. Step 5: Solve for x
    x = 4,657,700.35/2,431.42
  6. Step 6: Final answer
    x = 1,915.63

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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.