Home / 5,425.74-8,140.04-2,305.86

Finding the Fourth Proportional to 5,425.74, 8,140.04 and 2,305.86

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Solution

The fourth proportional to 5,425.74, 8,140.04 and 2,305.86 is: 3,459.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.74 : 8,140.04 = 2,305.86 : x
  2. Step 2: Convert to fraction form
    5,425.74/8,140.04 = 2,305.86/x
  3. Step 3: Cross multiply
    5,425.74x = 8,140.04 × 2,305.86
  4. Step 4: Simplify right side
    5,425.74x = 18,769,792.63
  5. Step 5: Solve for x
    x = 18,769,792.63/5,425.74
  6. Step 6: Final answer
    x = 3,459.40

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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.