Home / 3,157.56-4,357.44-1,760.40

Finding the Fourth Proportional to 3,157.56, 4,357.44 and 1,760.40

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Solution

The fourth proportional to 3,157.56, 4,357.44 and 1,760.40 is: 2,429.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157.56 : 4,357.44 = 1,760.40 : x
  2. Step 2: Convert to fraction form
    3,157.56/4,357.44 = 1,760.40/x
  3. Step 3: Cross multiply
    3,157.56x = 4,357.44 × 1,760.40
  4. Step 4: Simplify right side
    3,157.56x = 7,670,837.38
  5. Step 5: Solve for x
    x = 7,670,837.38/3,157.56
  6. Step 6: Final answer
    x = 2,429.36

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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.