Home / 5,620.38-7,756.11-3,102.51

Finding the Fourth Proportional to 5,620.38, 7,756.11 and 3,102.51

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Solution

The fourth proportional to 5,620.38, 7,756.11 and 3,102.51 is: 4,281.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.38 : 7,756.11 = 3,102.51 : x
  2. Step 2: Convert to fraction form
    5,620.38/7,756.11 = 3,102.51/x
  3. Step 3: Cross multiply
    5,620.38x = 7,756.11 × 3,102.51
  4. Step 4: Simplify right side
    5,620.38x = 24,063,408.84
  5. Step 5: Solve for x
    x = 24,063,408.84/5,620.38
  6. Step 6: Final answer
    x = 4,281.46

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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.