Home / 5,620.23-7,755.90-3,102.34

Finding the Fourth Proportional to 5,620.23, 7,755.90 and 3,102.34

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Solution

The fourth proportional to 5,620.23, 7,755.90 and 3,102.34 is: 4,281.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.23 : 7,755.90 = 3,102.34 : x
  2. Step 2: Convert to fraction form
    5,620.23/7,755.90 = 3,102.34/x
  3. Step 3: Cross multiply
    5,620.23x = 7,755.90 × 3,102.34
  4. Step 4: Simplify right side
    5,620.23x = 24,061,438.81
  5. Step 5: Solve for x
    x = 24,061,438.81/5,620.23
  6. Step 6: Final answer
    x = 4,281.22

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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.