Home / 5,169.77-7,127.62-3,755.51

Finding the Fourth Proportional to 5,169.77, 7,127.62 and 3,755.51

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Solution

The fourth proportional to 5,169.77, 7,127.62 and 3,755.51 is: 5,177.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,169.77 : 7,127.62 = 3,755.51 : x
  2. Step 2: Convert to fraction form
    5,169.77/7,127.62 = 3,755.51/x
  3. Step 3: Cross multiply
    5,169.77x = 7,127.62 × 3,755.51
  4. Step 4: Simplify right side
    5,169.77x = 26,767,803.16
  5. Step 5: Solve for x
    x = 26,767,803.16/5,169.77
  6. Step 6: Final answer
    x = 5,177.76

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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.