Home / 7,829.13-11,742.55-2,280.99

Finding the Fourth Proportional to 7,829.13, 11,742.55 and 2,280.99

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Solution

The fourth proportional to 7,829.13, 11,742.55 and 2,280.99 is: 3,421.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,829.13 : 11,742.55 = 2,280.99 : x
  2. Step 2: Convert to fraction form
    7,829.13/11,742.55 = 2,280.99/x
  3. Step 3: Cross multiply
    7,829.13x = 11,742.55 × 2,280.99
  4. Step 4: Simplify right side
    7,829.13x = 26,784,639.12
  5. Step 5: Solve for x
    x = 26,784,639.12/7,829.13
  6. Step 6: Final answer
    x = 3,421.15

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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.