Home / 2,455.30-3,678.90-2,042.20

Finding the Fourth Proportional to 2,455.30, 3,678.90 and 2,042.20

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Solution

The fourth proportional to 2,455.30, 3,678.90 and 2,042.20 is: 3,059.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.30 : 3,678.90 = 2,042.20 : x
  2. Step 2: Convert to fraction form
    2,455.30/3,678.90 = 2,042.20/x
  3. Step 3: Cross multiply
    2,455.30x = 3,678.90 × 2,042.20
  4. Step 4: Simplify right side
    2,455.30x = 7,513,049.58
  5. Step 5: Solve for x
    x = 7,513,049.58/2,455.30
  6. Step 6: Final answer
    x = 3,059.93

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1.5x scale

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.