Home / 5,618.60-7,755.21-3,261.50

Finding the Fourth Proportional to 5,618.60, 7,755.21 and 3,261.50

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Solution

The fourth proportional to 5,618.60, 7,755.21 and 3,261.50 is: 4,501.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.60 : 7,755.21 = 3,261.50 : x
  2. Step 2: Convert to fraction form
    5,618.60/7,755.21 = 3,261.50/x
  3. Step 3: Cross multiply
    5,618.60x = 7,755.21 × 3,261.50
  4. Step 4: Simplify right side
    5,618.60x = 25,293,617.42
  5. Step 5: Solve for x
    x = 25,293,617.42/5,618.60
  6. Step 6: Final answer
    x = 4,501.77

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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.