Home / 3,967.95-5,475.57-2,175.09

Finding the Fourth Proportional to 3,967.95, 5,475.57 and 2,175.09

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Solution

The fourth proportional to 3,967.95, 5,475.57 and 2,175.09 is: 3,001.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,967.95 : 5,475.57 = 2,175.09 : x
  2. Step 2: Convert to fraction form
    3,967.95/5,475.57 = 2,175.09/x
  3. Step 3: Cross multiply
    3,967.95x = 5,475.57 × 2,175.09
  4. Step 4: Simplify right side
    3,967.95x = 11,909,828.86
  5. Step 5: Solve for x
    x = 11,909,828.86/3,967.95
  6. Step 6: Final answer
    x = 3,001.50

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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.