Home / 2,642.12-3,962.37-1,825.64

Finding the Fourth Proportional to 2,642.12, 3,962.37 and 1,825.64

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Solution

The fourth proportional to 2,642.12, 3,962.37 and 1,825.64 is: 2,737.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,642.12 : 3,962.37 = 1,825.64 : x
  2. Step 2: Convert to fraction form
    2,642.12/3,962.37 = 1,825.64/x
  3. Step 3: Cross multiply
    2,642.12x = 3,962.37 × 1,825.64
  4. Step 4: Simplify right side
    2,642.12x = 7,233,841.35
  5. Step 5: Solve for x
    x = 7,233,841.35/2,642.12
  6. Step 6: Final answer
    x = 2,737.90

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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.