Home / 5,627.75-7,761.24-4,686.65

Finding the Fourth Proportional to 5,627.75, 7,761.24 and 4,686.65

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Solution

The fourth proportional to 5,627.75, 7,761.24 and 4,686.65 is: 6,463.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,627.75 : 7,761.24 = 4,686.65 : x
  2. Step 2: Convert to fraction form
    5,627.75/7,761.24 = 4,686.65/x
  3. Step 3: Cross multiply
    5,627.75x = 7,761.24 × 4,686.65
  4. Step 4: Simplify right side
    5,627.75x = 36,374,215.45
  5. Step 5: Solve for x
    x = 36,374,215.45/5,627.75
  6. Step 6: Final answer
    x = 6,463.37

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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.