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Finding the Fourth Proportional to 3,690.87, 5,537.93 and 1,935.45

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Solution

The fourth proportional to 3,690.87, 5,537.93 and 1,935.45 is: 2,904.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,690.87 : 5,537.93 = 1,935.45 : x
  2. Step 2: Convert to fraction form
    3,690.87/5,537.93 = 1,935.45/x
  3. Step 3: Cross multiply
    3,690.87x = 5,537.93 × 1,935.45
  4. Step 4: Simplify right side
    3,690.87x = 10,718,386.62
  5. Step 5: Solve for x
    x = 10,718,386.62/3,690.87
  6. Step 6: Final answer
    x = 2,904.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.