Home / 5,178.55-7,143.95-3,500.54

Finding the Fourth Proportional to 5,178.55, 7,143.95 and 3,500.54

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Solution

The fourth proportional to 5,178.55, 7,143.95 and 3,500.54 is: 4,829.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178.55 : 7,143.95 = 3,500.54 : x
  2. Step 2: Convert to fraction form
    5,178.55/7,143.95 = 3,500.54/x
  3. Step 3: Cross multiply
    5,178.55x = 7,143.95 × 3,500.54
  4. Step 4: Simplify right side
    5,178.55x = 25,007,709.34
  5. Step 5: Solve for x
    x = 25,007,709.34/5,178.55
  6. Step 6: Final answer
    x = 4,829.10

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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.