Home / 7,143.21-10,707.03-3,442.86

Finding the Fourth Proportional to 7,143.21, 10,707.03 and 3,442.86

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Solution

The fourth proportional to 7,143.21, 10,707.03 and 3,442.86 is: 5,160.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,143.21 : 10,707.03 = 3,442.86 : x
  2. Step 2: Convert to fraction form
    7,143.21/10,707.03 = 3,442.86/x
  3. Step 3: Cross multiply
    7,143.21x = 10,707.03 × 3,442.86
  4. Step 4: Simplify right side
    7,143.21x = 36,862,805.31
  5. Step 5: Solve for x
    x = 36,862,805.31/7,143.21
  6. Step 6: Final answer
    x = 5,160.54

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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.