Home / 7,143.86-10,704.76-3,628.53

Finding the Fourth Proportional to 7,143.86, 10,704.76 and 3,628.53

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Solution

The fourth proportional to 7,143.86, 10,704.76 and 3,628.53 is: 5,437.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,143.86 : 10,704.76 = 3,628.53 : x
  2. Step 2: Convert to fraction form
    7,143.86/10,704.76 = 3,628.53/x
  3. Step 3: Cross multiply
    7,143.86x = 10,704.76 × 3,628.53
  4. Step 4: Simplify right side
    7,143.86x = 38,842,533.73
  5. Step 5: Solve for x
    x = 38,842,533.73/7,143.86
  6. Step 6: Final answer
    x = 5,437.19

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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.