Home / 5,076.90-7,001.58-3,188.66

Finding the Fourth Proportional to 5,076.90, 7,001.58 and 3,188.66

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Solution

The fourth proportional to 5,076.90, 7,001.58 and 3,188.66 is: 4,397.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,076.90 : 7,001.58 = 3,188.66 : x
  2. Step 2: Convert to fraction form
    5,076.90/7,001.58 = 3,188.66/x
  3. Step 3: Cross multiply
    5,076.90x = 7,001.58 × 3,188.66
  4. Step 4: Simplify right side
    5,076.90x = 22,325,623.07
  5. Step 5: Solve for x
    x = 22,325,623.07/5,076.90
  6. Step 6: Final answer
    x = 4,397.49

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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.