Home / 7,187.60-9,917.64-4,043.92

Finding the Fourth Proportional to 7,187.60, 9,917.64 and 4,043.92

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Solution

The fourth proportional to 7,187.60, 9,917.64 and 4,043.92 is: 5,579.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,187.60 : 9,917.64 = 4,043.92 : x
  2. Step 2: Convert to fraction form
    7,187.60/9,917.64 = 4,043.92/x
  3. Step 3: Cross multiply
    7,187.60x = 9,917.64 × 4,043.92
  4. Step 4: Simplify right side
    7,187.60x = 40,106,142.75
  5. Step 5: Solve for x
    x = 40,106,142.75/7,187.60
  6. Step 6: Final answer
    x = 5,579.91

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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.