Home / 2,830.60-4,246.70-1,187.92

Finding the Fourth Proportional to 2,830.60, 4,246.70 and 1,187.92

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Solution

The fourth proportional to 2,830.60, 4,246.70 and 1,187.92 is: 1,782.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.60 : 4,246.70 = 1,187.92 : x
  2. Step 2: Convert to fraction form
    2,830.60/4,246.70 = 1,187.92/x
  3. Step 3: Cross multiply
    2,830.60x = 4,246.70 × 1,187.92
  4. Step 4: Simplify right side
    2,830.60x = 5,044,739.86
  5. Step 5: Solve for x
    x = 5,044,739.86/2,830.60
  6. Step 6: Final answer
    x = 1,782.22

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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.