Home / 1,761.68-2,436.96-1,554.80

Finding the Fourth Proportional to 1,761.68, 2,436.96 and 1,554.80

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Solution

The fourth proportional to 1,761.68, 2,436.96 and 1,554.80 is: 2,150.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,761.68 : 2,436.96 = 1,554.80 : x
  2. Step 2: Convert to fraction form
    1,761.68/2,436.96 = 1,554.80/x
  3. Step 3: Cross multiply
    1,761.68x = 2,436.96 × 1,554.80
  4. Step 4: Simplify right side
    1,761.68x = 3,788,985.41
  5. Step 5: Solve for x
    x = 3,788,985.41/1,761.68
  6. Step 6: Final answer
    x = 2,150.78

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1.5x scale

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.