Home / 5,685.70-8,530.26-1,790.14

Finding the Fourth Proportional to 5,685.70, 8,530.26 and 1,790.14

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Solution

The fourth proportional to 5,685.70, 8,530.26 and 1,790.14 is: 2,685.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,685.70 : 8,530.26 = 1,790.14 : x
  2. Step 2: Convert to fraction form
    5,685.70/8,530.26 = 1,790.14/x
  3. Step 3: Cross multiply
    5,685.70x = 8,530.26 × 1,790.14
  4. Step 4: Simplify right side
    5,685.70x = 15,270,359.64
  5. Step 5: Solve for x
    x = 15,270,359.64/5,685.70
  6. Step 6: Final answer
    x = 2,685.75

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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.