Home / 5,809.91-8,017.61-3,157.43

Finding the Fourth Proportional to 5,809.91, 8,017.61 and 3,157.43

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Solution

The fourth proportional to 5,809.91, 8,017.61 and 3,157.43 is: 4,357.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,809.91 : 8,017.61 = 3,157.43 : x
  2. Step 2: Convert to fraction form
    5,809.91/8,017.61 = 3,157.43/x
  3. Step 3: Cross multiply
    5,809.91x = 8,017.61 × 3,157.43
  4. Step 4: Simplify right side
    5,809.91x = 25,314,986.47
  5. Step 5: Solve for x
    x = 25,314,986.47/5,809.91
  6. Step 6: Final answer
    x = 4,357.21

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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.