Home / 2,871.94-4,307.88-1,897.80

Finding the Fourth Proportional to 2,871.94, 4,307.88 and 1,897.80

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Solution

The fourth proportional to 2,871.94, 4,307.88 and 1,897.80 is: 2,846.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.94 : 4,307.88 = 1,897.80 : x
  2. Step 2: Convert to fraction form
    2,871.94/4,307.88 = 1,897.80/x
  3. Step 3: Cross multiply
    2,871.94x = 4,307.88 × 1,897.80
  4. Step 4: Simplify right side
    2,871.94x = 8,175,494.66
  5. Step 5: Solve for x
    x = 8,175,494.66/2,871.94
  6. Step 6: Final answer
    x = 2,846.68

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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.