Home / 4,277.80-6,402.30-2,981.80

Finding the Fourth Proportional to 4,277.80, 6,402.30 and 2,981.80

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Solution

The fourth proportional to 4,277.80, 6,402.30 and 2,981.80 is: 4,462.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,277.80 : 6,402.30 = 2,981.80 : x
  2. Step 2: Convert to fraction form
    4,277.80/6,402.30 = 2,981.80/x
  3. Step 3: Cross multiply
    4,277.80x = 6,402.30 × 2,981.80
  4. Step 4: Simplify right side
    4,277.80x = 19,090,378.14
  5. Step 5: Solve for x
    x = 19,090,378.14/4,277.80
  6. Step 6: Final answer
    x = 4,462.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.