Home / 3,726.81-5,145.07-2,235.09

Finding the Fourth Proportional to 3,726.81, 5,145.07 and 2,235.09

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Solution

The fourth proportional to 3,726.81, 5,145.07 and 2,235.09 is: 3,085.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,726.81 : 5,145.07 = 2,235.09 : x
  2. Step 2: Convert to fraction form
    3,726.81/5,145.07 = 2,235.09/x
  3. Step 3: Cross multiply
    3,726.81x = 5,145.07 × 2,235.09
  4. Step 4: Simplify right side
    3,726.81x = 11,499,712.40
  5. Step 5: Solve for x
    x = 11,499,712.40/3,726.81
  6. Step 6: Final answer
    x = 3,085.67

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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.