Home / 2,174.20-3,000.87-1,377.01

Finding the Fourth Proportional to 2,174.20, 3,000.87 and 1,377.01

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Solution

The fourth proportional to 2,174.20, 3,000.87 and 1,377.01 is: 1,900.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,174.20 : 3,000.87 = 1,377.01 : x
  2. Step 2: Convert to fraction form
    2,174.20/3,000.87 = 1,377.01/x
  3. Step 3: Cross multiply
    2,174.20x = 3,000.87 × 1,377.01
  4. Step 4: Simplify right side
    2,174.20x = 4,132,228.00
  5. Step 5: Solve for x
    x = 4,132,228.00/2,174.20
  6. Step 6: Final answer
    x = 1,900.57

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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.