Home / 5,383.30-8,074.90-1,685.56

Finding the Fourth Proportional to 5,383.30, 8,074.90 and 1,685.56

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Solution

The fourth proportional to 5,383.30, 8,074.90 and 1,685.56 is: 2,528.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,383.30 : 8,074.90 = 1,685.56 : x
  2. Step 2: Convert to fraction form
    5,383.30/8,074.90 = 1,685.56/x
  3. Step 3: Cross multiply
    5,383.30x = 8,074.90 × 1,685.56
  4. Step 4: Simplify right side
    5,383.30x = 13,610,728.44
  5. Step 5: Solve for x
    x = 13,610,728.44/5,383.30
  6. Step 6: Final answer
    x = 2,528.32

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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.