Home / 5,685.34-8,529.12-1,788.82

Finding the Fourth Proportional to 5,685.34, 8,529.12 and 1,788.82

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Solution

The fourth proportional to 5,685.34, 8,529.12 and 1,788.82 is: 2,683.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,685.34 : 8,529.12 = 1,788.82 : x
  2. Step 2: Convert to fraction form
    5,685.34/8,529.12 = 1,788.82/x
  3. Step 3: Cross multiply
    5,685.34x = 8,529.12 × 1,788.82
  4. Step 4: Simplify right side
    5,685.34x = 15,257,060.44
  5. Step 5: Solve for x
    x = 15,257,060.44/5,685.34
  6. Step 6: Final answer
    x = 2,683.58

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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.