Home / 2,925.85-4,382.29-2,101.64

Finding the Fourth Proportional to 2,925.85, 4,382.29 and 2,101.64

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Solution

The fourth proportional to 2,925.85, 4,382.29 and 2,101.64 is: 3,147.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,925.85 : 4,382.29 = 2,101.64 : x
  2. Step 2: Convert to fraction form
    2,925.85/4,382.29 = 2,101.64/x
  3. Step 3: Cross multiply
    2,925.85x = 4,382.29 × 2,101.64
  4. Step 4: Simplify right side
    2,925.85x = 9,209,995.96
  5. Step 5: Solve for x
    x = 9,209,995.96/2,925.85
  6. Step 6: Final answer
    x = 3,147.80

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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.