Home / 5,808.47-8,015.72-3,155.90

Finding the Fourth Proportional to 5,808.47, 8,015.72 and 3,155.90

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Solution

The fourth proportional to 5,808.47, 8,015.72 and 3,155.90 is: 4,355.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,808.47 : 8,015.72 = 3,155.90 : x
  2. Step 2: Convert to fraction form
    5,808.47/8,015.72 = 3,155.90/x
  3. Step 3: Cross multiply
    5,808.47x = 8,015.72 × 3,155.90
  4. Step 4: Simplify right side
    5,808.47x = 25,296,754.89
  5. Step 5: Solve for x
    x = 25,296,754.89/5,808.47
  6. Step 6: Final answer
    x = 4,355.15

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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.