Home / 1,841.88-2,539.98-1,561.80

Finding the Fourth Proportional to 1,841.88, 2,539.98 and 1,561.80

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Solution

The fourth proportional to 1,841.88, 2,539.98 and 1,561.80 is: 2,153.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,841.88 : 2,539.98 = 1,561.80 : x
  2. Step 2: Convert to fraction form
    1,841.88/2,539.98 = 1,561.80/x
  3. Step 3: Cross multiply
    1,841.88x = 2,539.98 × 1,561.80
  4. Step 4: Simplify right side
    1,841.88x = 3,966,940.76
  5. Step 5: Solve for x
    x = 3,966,940.76/1,841.88
  6. Step 6: Final answer
    x = 2,153.75

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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.