Home / 2,027.50-2,798.08-1,231.38

Finding the Fourth Proportional to 2,027.50, 2,798.08 and 1,231.38

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Solution

The fourth proportional to 2,027.50, 2,798.08 and 1,231.38 is: 1,699.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,027.50 : 2,798.08 = 1,231.38 : x
  2. Step 2: Convert to fraction form
    2,027.50/2,798.08 = 1,231.38/x
  3. Step 3: Cross multiply
    2,027.50x = 2,798.08 × 1,231.38
  4. Step 4: Simplify right side
    2,027.50x = 3,445,499.75
  5. Step 5: Solve for x
    x = 3,445,499.75/2,027.50
  6. Step 6: Final answer
    x = 1,699.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.