Home / 2,438.86-3,365.60-1,319.77

Finding the Fourth Proportional to 2,438.86, 3,365.60 and 1,319.77

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Solution

The fourth proportional to 2,438.86, 3,365.60 and 1,319.77 is: 1,821.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,438.86 : 3,365.60 = 1,319.77 : x
  2. Step 2: Convert to fraction form
    2,438.86/3,365.60 = 1,319.77/x
  3. Step 3: Cross multiply
    2,438.86x = 3,365.60 × 1,319.77
  4. Step 4: Simplify right side
    2,438.86x = 4,441,817.91
  5. Step 5: Solve for x
    x = 4,441,817.91/2,438.86
  6. Step 6: Final answer
    x = 1,821.27

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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.