Home / 1,959.80-2,703.38-1,173.69

Finding the Fourth Proportional to 1,959.80, 2,703.38 and 1,173.69

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Solution

The fourth proportional to 1,959.80, 2,703.38 and 1,173.69 is: 1,619.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,959.80 : 2,703.38 = 1,173.69 : x
  2. Step 2: Convert to fraction form
    1,959.80/2,703.38 = 1,173.69/x
  3. Step 3: Cross multiply
    1,959.80x = 2,703.38 × 1,173.69
  4. Step 4: Simplify right side
    1,959.80x = 3,172,924.20
  5. Step 5: Solve for x
    x = 3,172,924.20/1,959.80
  6. Step 6: Final answer
    x = 1,619.01

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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.