Home / 4,156.38-5,718.60-3,155.85

Finding the Fourth Proportional to 4,156.38, 5,718.60 and 3,155.85

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Solution

The fourth proportional to 4,156.38, 5,718.60 and 3,155.85 is: 4,342.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,156.38 : 5,718.60 = 3,155.85 : x
  2. Step 2: Convert to fraction form
    4,156.38/5,718.60 = 3,155.85/x
  3. Step 3: Cross multiply
    4,156.38x = 5,718.60 × 3,155.85
  4. Step 4: Simplify right side
    4,156.38x = 18,047,043.81
  5. Step 5: Solve for x
    x = 18,047,043.81/4,156.38
  6. Step 6: Final answer
    x = 4,342.01

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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.