Home / 4,905.90-6,768.99-3,315.47

Finding the Fourth Proportional to 4,905.90, 6,768.99 and 3,315.47

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Solution

The fourth proportional to 4,905.90, 6,768.99 and 3,315.47 is: 4,574.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,905.90 : 6,768.99 = 3,315.47 : x
  2. Step 2: Convert to fraction form
    4,905.90/6,768.99 = 3,315.47/x
  3. Step 3: Cross multiply
    4,905.90x = 6,768.99 × 3,315.47
  4. Step 4: Simplify right side
    4,905.90x = 22,442,349.43
  5. Step 5: Solve for x
    x = 22,442,349.43/4,905.90
  6. Step 6: Final answer
    x = 4,574.56

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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.