Home / 3,751.48-5,177.08-2,158.91

Finding the Fourth Proportional to 3,751.48, 5,177.08 and 2,158.91

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Solution

The fourth proportional to 3,751.48, 5,177.08 and 2,158.91 is: 2,979.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,751.48 : 5,177.08 = 2,158.91 : x
  2. Step 2: Convert to fraction form
    3,751.48/5,177.08 = 2,158.91/x
  3. Step 3: Cross multiply
    3,751.48x = 5,177.08 × 2,158.91
  4. Step 4: Simplify right side
    3,751.48x = 11,176,849.78
  5. Step 5: Solve for x
    x = 11,176,849.78/3,751.48
  6. Step 6: Final answer
    x = 2,979.32

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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.