Home / 2,867.88-4,298.10-1,405.08

Finding the Fourth Proportional to 2,867.88, 4,298.10 and 1,405.08

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Solution

The fourth proportional to 2,867.88, 4,298.10 and 1,405.08 is: 2,105.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,867.88 : 4,298.10 = 1,405.08 : x
  2. Step 2: Convert to fraction form
    2,867.88/4,298.10 = 1,405.08/x
  3. Step 3: Cross multiply
    2,867.88x = 4,298.10 × 1,405.08
  4. Step 4: Simplify right side
    2,867.88x = 6,039,174.35
  5. Step 5: Solve for x
    x = 6,039,174.35/2,867.88
  6. Step 6: Final answer
    x = 2,105.80

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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.