Home / 4,905.68-6,768.68-3,315.29

Finding the Fourth Proportional to 4,905.68, 6,768.68 and 3,315.29

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Solution

The fourth proportional to 4,905.68, 6,768.68 and 3,315.29 is: 4,574.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,905.68 : 6,768.68 = 3,315.29 : x
  2. Step 2: Convert to fraction form
    4,905.68/6,768.68 = 3,315.29/x
  3. Step 3: Cross multiply
    4,905.68x = 6,768.68 × 3,315.29
  4. Step 4: Simplify right side
    4,905.68x = 22,440,086.70
  5. Step 5: Solve for x
    x = 22,440,086.70/4,905.68
  6. Step 6: Final answer
    x = 4,574.31

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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.