Home / 5,477.13-7,564.73-3,991.68

Finding the Fourth Proportional to 5,477.13, 7,564.73 and 3,991.68

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Solution

The fourth proportional to 5,477.13, 7,564.73 and 3,991.68 is: 5,513.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,477.13 : 7,564.73 = 3,991.68 : x
  2. Step 2: Convert to fraction form
    5,477.13/7,564.73 = 3,991.68/x
  3. Step 3: Cross multiply
    5,477.13x = 7,564.73 × 3,991.68
  4. Step 4: Simplify right side
    5,477.13x = 30,195,961.49
  5. Step 5: Solve for x
    x = 30,195,961.49/5,477.13
  6. Step 6: Final answer
    x = 5,513.10

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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.