Home / 5,809.78-8,017.39-3,157.23

Finding the Fourth Proportional to 5,809.78, 8,017.39 and 3,157.23

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Solution

The fourth proportional to 5,809.78, 8,017.39 and 3,157.23 is: 4,356.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,809.78 : 8,017.39 = 3,157.23 : x
  2. Step 2: Convert to fraction form
    5,809.78/8,017.39 = 3,157.23/x
  3. Step 3: Cross multiply
    5,809.78x = 8,017.39 × 3,157.23
  4. Step 4: Simplify right side
    5,809.78x = 25,312,744.23
  5. Step 5: Solve for x
    x = 25,312,744.23/5,809.78
  6. Step 6: Final answer
    x = 4,356.92

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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.