Home / 1,939.98-2,677.18-1,055.80

Finding the Fourth Proportional to 1,939.98, 2,677.18 and 1,055.80

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Solution

The fourth proportional to 1,939.98, 2,677.18 and 1,055.80 is: 1,457.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.98 : 2,677.18 = 1,055.80 : x
  2. Step 2: Convert to fraction form
    1,939.98/2,677.18 = 1,055.80/x
  3. Step 3: Cross multiply
    1,939.98x = 2,677.18 × 1,055.80
  4. Step 4: Simplify right side
    1,939.98x = 2,826,555.07
  5. Step 5: Solve for x
    x = 2,826,555.07/1,939.98
  6. Step 6: Final answer
    x = 1,457.01

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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.