Home / 1,959.10-2,703.70-1,294.80

Finding the Fourth Proportional to 1,959.10, 2,703.70 and 1,294.80

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Solution

The fourth proportional to 1,959.10, 2,703.70 and 1,294.80 is: 1,786.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,959.10 : 2,703.70 = 1,294.80 : x
  2. Step 2: Convert to fraction form
    1,959.10/2,703.70 = 1,294.80/x
  3. Step 3: Cross multiply
    1,959.10x = 2,703.70 × 1,294.80
  4. Step 4: Simplify right side
    1,959.10x = 3,500,750.76
  5. Step 5: Solve for x
    x = 3,500,750.76/1,959.10
  6. Step 6: Final answer
    x = 1,786.92

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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.