Home / 4,187.87-5,778.83-2,420.04

Finding the Fourth Proportional to 4,187.87, 5,778.83 and 2,420.04

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Solution

The fourth proportional to 4,187.87, 5,778.83 and 2,420.04 is: 3,339.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,187.87 : 5,778.83 = 2,420.04 : x
  2. Step 2: Convert to fraction form
    4,187.87/5,778.83 = 2,420.04/x
  3. Step 3: Cross multiply
    4,187.87x = 5,778.83 × 2,420.04
  4. Step 4: Simplify right side
    4,187.87x = 13,985,027.47
  5. Step 5: Solve for x
    x = 13,985,027.47/4,187.87
  6. Step 6: Final answer
    x = 3,339.41

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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.