Home / 2,816.38-4,225.58-1,428.66

Finding the Fourth Proportional to 2,816.38, 4,225.58 and 1,428.66

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Solution

The fourth proportional to 2,816.38, 4,225.58 and 1,428.66 is: 2,143.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,816.38 : 4,225.58 = 1,428.66 : x
  2. Step 2: Convert to fraction form
    2,816.38/4,225.58 = 1,428.66/x
  3. Step 3: Cross multiply
    2,816.38x = 4,225.58 × 1,428.66
  4. Step 4: Simplify right side
    2,816.38x = 6,036,917.12
  5. Step 5: Solve for x
    x = 6,036,917.12/2,816.38
  6. Step 6: Final answer
    x = 2,143.50

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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.