Home / 3,751.45-5,177.76-2,159.22

Finding the Fourth Proportional to 3,751.45, 5,177.76 and 2,159.22

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Solution

The fourth proportional to 3,751.45, 5,177.76 and 2,159.22 is: 2,980.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,751.45 : 5,177.76 = 2,159.22 : x
  2. Step 2: Convert to fraction form
    3,751.45/5,177.76 = 2,159.22/x
  3. Step 3: Cross multiply
    3,751.45x = 5,177.76 × 2,159.22
  4. Step 4: Simplify right side
    3,751.45x = 11,179,922.95
  5. Step 5: Solve for x
    x = 11,179,922.95/3,751.45
  6. Step 6: Final answer
    x = 2,980.16

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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.