Home / 5,113.68-7,661.88-3,260.40

Finding the Fourth Proportional to 5,113.68, 7,661.88 and 3,260.40

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Solution

The fourth proportional to 5,113.68, 7,661.88 and 3,260.40 is: 4,885.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,113.68 : 7,661.88 = 3,260.40 : x
  2. Step 2: Convert to fraction form
    5,113.68/7,661.88 = 3,260.40/x
  3. Step 3: Cross multiply
    5,113.68x = 7,661.88 × 3,260.40
  4. Step 4: Simplify right side
    5,113.68x = 24,980,793.55
  5. Step 5: Solve for x
    x = 24,980,793.55/5,113.68
  6. Step 6: Final answer
    x = 4,885.09

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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.