Home / 5,635.89-8,455.84-2,515.61

Finding the Fourth Proportional to 5,635.89, 8,455.84 and 2,515.61

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Solution

The fourth proportional to 5,635.89, 8,455.84 and 2,515.61 is: 3,774.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,635.89 : 8,455.84 = 2,515.61 : x
  2. Step 2: Convert to fraction form
    5,635.89/8,455.84 = 2,515.61/x
  3. Step 3: Cross multiply
    5,635.89x = 8,455.84 × 2,515.61
  4. Step 4: Simplify right side
    5,635.89x = 21,271,610.51
  5. Step 5: Solve for x
    x = 21,271,610.51/5,635.89
  6. Step 6: Final answer
    x = 3,774.31

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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.