Home / 5,809.12-8,709.21-2,885.15

Finding the Fourth Proportional to 5,809.12, 8,709.21 and 2,885.15

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Solution

The fourth proportional to 5,809.12, 8,709.21 and 2,885.15 is: 4,325.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,809.12 : 8,709.21 = 2,885.15 : x
  2. Step 2: Convert to fraction form
    5,809.12/8,709.21 = 2,885.15/x
  3. Step 3: Cross multiply
    5,809.12x = 8,709.21 × 2,885.15
  4. Step 4: Simplify right side
    5,809.12x = 25,127,399.00
  5. Step 5: Solve for x
    x = 25,127,399.00/5,809.12
  6. Step 6: Final answer
    x = 4,325.51

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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.