Home / 3,570.09-5,357.42-1,927.78

Finding the Fourth Proportional to 3,570.09, 5,357.42 and 1,927.78

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Solution

The fourth proportional to 3,570.09, 5,357.42 and 1,927.78 is: 2,892.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,570.09 : 5,357.42 = 1,927.78 : x
  2. Step 2: Convert to fraction form
    3,570.09/5,357.42 = 1,927.78/x
  3. Step 3: Cross multiply
    3,570.09x = 5,357.42 × 1,927.78
  4. Step 4: Simplify right side
    3,570.09x = 10,327,927.13
  5. Step 5: Solve for x
    x = 10,327,927.13/3,570.09
  6. Step 6: Final answer
    x = 2,892.90

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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.