Home / 3,688.80-5,066.29-3,418.24

Finding the Fourth Proportional to 3,688.80, 5,066.29 and 3,418.24

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Solution

The fourth proportional to 3,688.80, 5,066.29 and 3,418.24 is: 4,694.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.80 : 5,066.29 = 3,418.24 : x
  2. Step 2: Convert to fraction form
    3,688.80/5,066.29 = 3,418.24/x
  3. Step 3: Cross multiply
    3,688.80x = 5,066.29 × 3,418.24
  4. Step 4: Simplify right side
    3,688.80x = 17,317,795.13
  5. Step 5: Solve for x
    x = 17,317,795.13/3,688.80
  6. Step 6: Final answer
    x = 4,694.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.