Home / 2,879.13-4,318.04-1,398.30

Finding the Fourth Proportional to 2,879.13, 4,318.04 and 1,398.30

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Solution

The fourth proportional to 2,879.13, 4,318.04 and 1,398.30 is: 2,097.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.13 : 4,318.04 = 1,398.30 : x
  2. Step 2: Convert to fraction form
    2,879.13/4,318.04 = 1,398.30/x
  3. Step 3: Cross multiply
    2,879.13x = 4,318.04 × 1,398.30
  4. Step 4: Simplify right side
    2,879.13x = 6,037,915.33
  5. Step 5: Solve for x
    x = 6,037,915.33/2,879.13
  6. Step 6: Final answer
    x = 2,097.13

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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.