Home / 4,991.77-7,477.62-2,485.40

Finding the Fourth Proportional to 4,991.77, 7,477.62 and 2,485.40

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Solution

The fourth proportional to 4,991.77, 7,477.62 and 2,485.40 is: 3,723.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991.77 : 7,477.62 = 2,485.40 : x
  2. Step 2: Convert to fraction form
    4,991.77/7,477.62 = 2,485.40/x
  3. Step 3: Cross multiply
    4,991.77x = 7,477.62 × 2,485.40
  4. Step 4: Simplify right side
    4,991.77x = 18,584,882.96
  5. Step 5: Solve for x
    x = 18,584,882.96/4,991.77
  6. Step 6: Final answer
    x = 3,723.11

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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.