Home / 3,080.69-4,251.65-1,683.65

Finding the Fourth Proportional to 3,080.69, 4,251.65 and 1,683.65

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Solution

The fourth proportional to 3,080.69, 4,251.65 and 1,683.65 is: 2,323.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,080.69 : 4,251.65 = 1,683.65 : x
  2. Step 2: Convert to fraction form
    3,080.69/4,251.65 = 1,683.65/x
  3. Step 3: Cross multiply
    3,080.69x = 4,251.65 × 1,683.65
  4. Step 4: Simplify right side
    3,080.69x = 7,158,282.10
  5. Step 5: Solve for x
    x = 7,158,282.10/3,080.69
  6. Step 6: Final answer
    x = 2,323.60

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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.