Home / 4,187.60-5,778.93-2,419.77

Finding the Fourth Proportional to 4,187.60, 5,778.93 and 2,419.77

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Solution

The fourth proportional to 4,187.60, 5,778.93 and 2,419.77 is: 3,339.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,187.60 : 5,778.93 = 2,419.77 : x
  2. Step 2: Convert to fraction form
    4,187.60/5,778.93 = 2,419.77/x
  3. Step 3: Cross multiply
    4,187.60x = 5,778.93 × 2,419.77
  4. Step 4: Simplify right side
    4,187.60x = 13,983,669.35
  5. Step 5: Solve for x
    x = 13,983,669.35/4,187.60
  6. Step 6: Final answer
    x = 3,339.31

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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.