Home / 5,174.17-7,139.86-2,904.99

Finding the Fourth Proportional to 5,174.17, 7,139.86 and 2,904.99

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Solution

The fourth proportional to 5,174.17, 7,139.86 and 2,904.99 is: 4,008.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,174.17 : 7,139.86 = 2,904.99 : x
  2. Step 2: Convert to fraction form
    5,174.17/7,139.86 = 2,904.99/x
  3. Step 3: Cross multiply
    5,174.17x = 7,139.86 × 2,904.99
  4. Step 4: Simplify right side
    5,174.17x = 20,741,214.64
  5. Step 5: Solve for x
    x = 20,741,214.64/5,174.17
  6. Step 6: Final answer
    x = 4,008.61

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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.