Home / 3,157.26-4,356.55-1,830.72

Finding the Fourth Proportional to 3,157.26, 4,356.55 and 1,830.72

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Solution

The fourth proportional to 3,157.26, 4,356.55 and 1,830.72 is: 2,526.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,157.26 : 4,356.55 = 1,830.72 : x
  2. Step 2: Convert to fraction form
    3,157.26/4,356.55 = 1,830.72/x
  3. Step 3: Cross multiply
    3,157.26x = 4,356.55 × 1,830.72
  4. Step 4: Simplify right side
    3,157.26x = 7,975,623.22
  5. Step 5: Solve for x
    x = 7,975,623.22/3,157.26
  6. Step 6: Final answer
    x = 2,526.12

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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.