Home / 2,874.20-4,302.30-1,830.56

Finding the Fourth Proportional to 2,874.20, 4,302.30 and 1,830.56

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Solution

The fourth proportional to 2,874.20, 4,302.30 and 1,830.56 is: 2,740.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,874.20 : 4,302.30 = 1,830.56 : x
  2. Step 2: Convert to fraction form
    2,874.20/4,302.30 = 1,830.56/x
  3. Step 3: Cross multiply
    2,874.20x = 4,302.30 × 1,830.56
  4. Step 4: Simplify right side
    2,874.20x = 7,875,618.29
  5. Step 5: Solve for x
    x = 7,875,618.29/2,874.20
  6. Step 6: Final answer
    x = 2,740.11

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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.