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Finding the Fourth Proportional to 3,578.34, 4,935.61 and 3,457.92

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Solution

The fourth proportional to 3,578.34, 4,935.61 and 3,457.92 is: 4,769.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578.34 : 4,935.61 = 3,457.92 : x
  2. Step 2: Convert to fraction form
    3,578.34/4,935.61 = 3,457.92/x
  3. Step 3: Cross multiply
    3,578.34x = 4,935.61 × 3,457.92
  4. Step 4: Simplify right side
    3,578.34x = 17,066,944.53
  5. Step 5: Solve for x
    x = 17,066,944.53/3,578.34
  6. Step 6: Final answer
    x = 4,769.51

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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.