Home / 5,091.18-7,635.56-3,720.66

Finding the Fourth Proportional to 5,091.18, 7,635.56 and 3,720.66

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Solution

The fourth proportional to 5,091.18, 7,635.56 and 3,720.66 is: 5,580.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,091.18 : 7,635.56 = 3,720.66 : x
  2. Step 2: Convert to fraction form
    5,091.18/7,635.56 = 3,720.66/x
  3. Step 3: Cross multiply
    5,091.18x = 7,635.56 × 3,720.66
  4. Step 4: Simplify right side
    5,091.18x = 28,409,304.07
  5. Step 5: Solve for x
    x = 28,409,304.07/5,091.18
  6. Step 6: Final answer
    x = 5,580.10

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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.