Home / 5,214.12-7,195.56-3,117.84

Finding the Fourth Proportional to 5,214.12, 7,195.56 and 3,117.84

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Solution

The fourth proportional to 5,214.12, 7,195.56 and 3,117.84 is: 4,302.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,214.12 : 7,195.56 = 3,117.84 : x
  2. Step 2: Convert to fraction form
    5,214.12/7,195.56 = 3,117.84/x
  3. Step 3: Cross multiply
    5,214.12x = 7,195.56 × 3,117.84
  4. Step 4: Simplify right side
    5,214.12x = 22,434,604.79
  5. Step 5: Solve for x
    x = 22,434,604.79/5,214.12
  6. Step 6: Final answer
    x = 4,302.66

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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.