Home / 2,611.47-3,915.99-1,050.87

Finding the Fourth Proportional to 2,611.47, 3,915.99 and 1,050.87

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Solution

The fourth proportional to 2,611.47, 3,915.99 and 1,050.87 is: 1,575.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,611.47 : 3,915.99 = 1,050.87 : x
  2. Step 2: Convert to fraction form
    2,611.47/3,915.99 = 1,050.87/x
  3. Step 3: Cross multiply
    2,611.47x = 3,915.99 × 1,050.87
  4. Step 4: Simplify right side
    2,611.47x = 4,115,196.41
  5. Step 5: Solve for x
    x = 4,115,196.41/2,611.47
  6. Step 6: Final answer
    x = 1,575.82

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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.