Home / 2,431.27-3,648-1,276.75

Finding the Fourth Proportional to 2,431.27, 3,648 and 1,276.75

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Solution

The fourth proportional to 2,431.27, 3,648 and 1,276.75 is: 1,915.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.27 : 3,648 = 1,276.75 : x
  2. Step 2: Convert to fraction form
    2,431.27/3,648 = 1,276.75/x
  3. Step 3: Cross multiply
    2,431.27x = 3,648 × 1,276.75
  4. Step 4: Simplify right side
    2,431.27x = 4,657,584
  5. Step 5: Solve for x
    x = 4,657,584/2,431.27
  6. Step 6: Final answer
    x = 1,915.70

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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.