Home / 3,036.12-4,189.76-1,709.80

Finding the Fourth Proportional to 3,036.12, 4,189.76 and 1,709.80

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Solution

The fourth proportional to 3,036.12, 4,189.76 and 1,709.80 is: 2,359.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,036.12 : 4,189.76 = 1,709.80 : x
  2. Step 2: Convert to fraction form
    3,036.12/4,189.76 = 1,709.80/x
  3. Step 3: Cross multiply
    3,036.12x = 4,189.76 × 1,709.80
  4. Step 4: Simplify right side
    3,036.12x = 7,163,651.65
  5. Step 5: Solve for x
    x = 7,163,651.65/3,036.12
  6. Step 6: Final answer
    x = 2,359.48

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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.