Home / 3,750.76-5,176.28-2,157.83

Finding the Fourth Proportional to 3,750.76, 5,176.28 and 2,157.83

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Solution

The fourth proportional to 3,750.76, 5,176.28 and 2,157.83 is: 2,977.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,750.76 : 5,176.28 = 2,157.83 : x
  2. Step 2: Convert to fraction form
    3,750.76/5,176.28 = 2,157.83/x
  3. Step 3: Cross multiply
    3,750.76x = 5,176.28 × 2,157.83
  4. Step 4: Simplify right side
    3,750.76x = 11,169,548.18
  5. Step 5: Solve for x
    x = 11,169,548.18/3,750.76
  6. Step 6: Final answer
    x = 2,977.95

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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.