Home / 4,289.86-6,430.19-2,808.52

Finding the Fourth Proportional to 4,289.86, 6,430.19 and 2,808.52

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Solution

The fourth proportional to 4,289.86, 6,430.19 and 2,808.52 is: 4,209.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,289.86 : 6,430.19 = 2,808.52 : x
  2. Step 2: Convert to fraction form
    4,289.86/6,430.19 = 2,808.52/x
  3. Step 3: Cross multiply
    4,289.86x = 6,430.19 × 2,808.52
  4. Step 4: Simplify right side
    4,289.86x = 18,059,323.27
  5. Step 5: Solve for x
    x = 18,059,323.27/4,289.86
  6. Step 6: Final answer
    x = 4,209.77

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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.