Home / 5,154.12-7,109.76-3,163.95

Finding the Fourth Proportional to 5,154.12, 7,109.76 and 3,163.95

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Solution

The fourth proportional to 5,154.12, 7,109.76 and 3,163.95 is: 4,364.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,154.12 : 7,109.76 = 3,163.95 : x
  2. Step 2: Convert to fraction form
    5,154.12/7,109.76 = 3,163.95/x
  3. Step 3: Cross multiply
    5,154.12x = 7,109.76 × 3,163.95
  4. Step 4: Simplify right side
    5,154.12x = 22,494,925.15
  5. Step 5: Solve for x
    x = 22,494,925.15/5,154.12
  6. Step 6: Final answer
    x = 4,364.46

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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.