Home / 2,190.69-3,284.08-803.70

Finding the Fourth Proportional to 2,190.69, 3,284.08 and 803.70

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Solution

The fourth proportional to 2,190.69, 3,284.08 and 803.70 is: 1,204.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.69 : 3,284.08 = 803.70 : x
  2. Step 2: Convert to fraction form
    2,190.69/3,284.08 = 803.70/x
  3. Step 3: Cross multiply
    2,190.69x = 3,284.08 × 803.70
  4. Step 4: Simplify right side
    2,190.69x = 2,639,411.08
  5. Step 5: Solve for x
    x = 2,639,411.08/2,190.69
  6. Step 6: Final answer
    x = 1,204.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.