Home / 5,206.68-7,182.30-3,109.56

Finding the Fourth Proportional to 5,206.68, 7,182.30 and 3,109.56

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Solution

The fourth proportional to 5,206.68, 7,182.30 and 3,109.56 is: 4,289.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,206.68 : 7,182.30 = 3,109.56 : x
  2. Step 2: Convert to fraction form
    5,206.68/7,182.30 = 3,109.56/x
  3. Step 3: Cross multiply
    5,206.68x = 7,182.30 × 3,109.56
  4. Step 4: Simplify right side
    5,206.68x = 22,333,792.79
  5. Step 5: Solve for x
    x = 22,333,792.79/5,206.68
  6. Step 6: Final answer
    x = 4,289.45

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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.