Home / 3,700.13-5,105.49-2,187.93

Finding the Fourth Proportional to 3,700.13, 5,105.49 and 2,187.93

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Solution

The fourth proportional to 3,700.13, 5,105.49 and 2,187.93 is: 3,018.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,700.13 : 5,105.49 = 2,187.93 : x
  2. Step 2: Convert to fraction form
    3,700.13/5,105.49 = 2,187.93/x
  3. Step 3: Cross multiply
    3,700.13x = 5,105.49 × 2,187.93
  4. Step 4: Simplify right side
    3,700.13x = 11,170,454.74
  5. Step 5: Solve for x
    x = 11,170,454.74/3,700.13
  6. Step 6: Final answer
    x = 3,018.94

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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.