Home / 2,174.39-3,000.68-1,277.89

Finding the Fourth Proportional to 2,174.39, 3,000.68 and 1,277.89

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Solution

The fourth proportional to 2,174.39, 3,000.68 and 1,277.89 is: 1,763.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,174.39 : 3,000.68 = 1,277.89 : x
  2. Step 2: Convert to fraction form
    2,174.39/3,000.68 = 1,277.89/x
  3. Step 3: Cross multiply
    2,174.39x = 3,000.68 × 1,277.89
  4. Step 4: Simplify right side
    2,174.39x = 3,834,541.12
  5. Step 5: Solve for x
    x = 3,834,541.12/2,174.39
  6. Step 6: Final answer
    x = 1,763.50

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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.