Home / 3,726.88-5,143.60-2,154.67

Finding the Fourth Proportional to 3,726.88, 5,143.60 and 2,154.67

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Solution

The fourth proportional to 3,726.88, 5,143.60 and 2,154.67 is: 2,973.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,726.88 : 5,143.60 = 2,154.67 : x
  2. Step 2: Convert to fraction form
    3,726.88/5,143.60 = 2,154.67/x
  3. Step 3: Cross multiply
    3,726.88x = 5,143.60 × 2,154.67
  4. Step 4: Simplify right side
    3,726.88x = 11,082,750.45
  5. Step 5: Solve for x
    x = 11,082,750.45/3,726.88
  6. Step 6: Final answer
    x = 2,973.74

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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.