Home / 7,124.38-10,682.44-3,421.55

Finding the Fourth Proportional to 7,124.38, 10,682.44 and 3,421.55

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Solution

The fourth proportional to 7,124.38, 10,682.44 and 3,421.55 is: 5,130.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,124.38 : 10,682.44 = 3,421.55 : x
  2. Step 2: Convert to fraction form
    7,124.38/10,682.44 = 3,421.55/x
  3. Step 3: Cross multiply
    7,124.38x = 10,682.44 × 3,421.55
  4. Step 4: Simplify right side
    7,124.38x = 36,550,520.73
  5. Step 5: Solve for x
    x = 36,550,520.73/7,124.38
  6. Step 6: Final answer
    x = 5,130.35

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1.5x scale

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.