Home / 2,815.38-4,224.08-1,427.66

Finding the Fourth Proportional to 2,815.38, 4,224.08 and 1,427.66

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Solution

The fourth proportional to 2,815.38, 4,224.08 and 1,427.66 is: 2,142.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.38 : 4,224.08 = 1,427.66 : x
  2. Step 2: Convert to fraction form
    2,815.38/4,224.08 = 1,427.66/x
  3. Step 3: Cross multiply
    2,815.38x = 4,224.08 × 1,427.66
  4. Step 4: Simplify right side
    2,815.38x = 6,030,563.15
  5. Step 5: Solve for x
    x = 6,030,563.15/2,815.38
  6. Step 6: Final answer
    x = 2,142.00

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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.