Home / 2,174.06-3,000.21-1,242.56

Finding the Fourth Proportional to 2,174.06, 3,000.21 and 1,242.56

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Solution

The fourth proportional to 2,174.06, 3,000.21 and 1,242.56 is: 1,714.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,174.06 : 3,000.21 = 1,242.56 : x
  2. Step 2: Convert to fraction form
    2,174.06/3,000.21 = 1,242.56/x
  3. Step 3: Cross multiply
    2,174.06x = 3,000.21 × 1,242.56
  4. Step 4: Simplify right side
    2,174.06x = 3,727,943.78
  5. Step 5: Solve for x
    x = 3,727,943.78/2,174.06
  6. Step 6: Final answer
    x = 1,714.74

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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.