Home / 2,878.14-4,318.80-2,189.10

Finding the Fourth Proportional to 2,878.14, 4,318.80 and 2,189.10

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Solution

The fourth proportional to 2,878.14, 4,318.80 and 2,189.10 is: 3,284.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,878.14 : 4,318.80 = 2,189.10 : x
  2. Step 2: Convert to fraction form
    2,878.14/4,318.80 = 2,189.10/x
  3. Step 3: Cross multiply
    2,878.14x = 4,318.80 × 2,189.10
  4. Step 4: Simplify right side
    2,878.14x = 9,454,285.08
  5. Step 5: Solve for x
    x = 9,454,285.08/2,878.14
  6. Step 6: Final answer
    x = 3,284.86

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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.