Home / 5,188.52-7,160.13-2,830.67

Finding the Fourth Proportional to 5,188.52, 7,160.13 and 2,830.67

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Solution

The fourth proportional to 5,188.52, 7,160.13 and 2,830.67 is: 3,906.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,188.52 : 7,160.13 = 2,830.67 : x
  2. Step 2: Convert to fraction form
    5,188.52/7,160.13 = 2,830.67/x
  3. Step 3: Cross multiply
    5,188.52x = 7,160.13 × 2,830.67
  4. Step 4: Simplify right side
    5,188.52x = 20,267,929.39
  5. Step 5: Solve for x
    x = 20,267,929.39/5,188.52
  6. Step 6: Final answer
    x = 3,906.31

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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.