Home / 2,830.61-4,245.92-981.73

Finding the Fourth Proportional to 2,830.61, 4,245.92 and 981.73

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Solution

The fourth proportional to 2,830.61, 4,245.92 and 981.73 is: 1,472.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.61 : 4,245.92 = 981.73 : x
  2. Step 2: Convert to fraction form
    2,830.61/4,245.92 = 981.73/x
  3. Step 3: Cross multiply
    2,830.61x = 4,245.92 × 981.73
  4. Step 4: Simplify right side
    2,830.61x = 4,168,347.04
  5. Step 5: Solve for x
    x = 4,168,347.04/2,830.61
  6. Step 6: Final answer
    x = 1,472.60

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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.