Home / 5,809.57-8,715.40-2,116.98

Finding the Fourth Proportional to 5,809.57, 8,715.40 and 2,116.98

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Solution

The fourth proportional to 5,809.57, 8,715.40 and 2,116.98 is: 3,175.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,809.57 : 8,715.40 = 2,116.98 : x
  2. Step 2: Convert to fraction form
    5,809.57/8,715.40 = 2,116.98/x
  3. Step 3: Cross multiply
    5,809.57x = 8,715.40 × 2,116.98
  4. Step 4: Simplify right side
    5,809.57x = 18,450,322.20
  5. Step 5: Solve for x
    x = 18,450,322.20/5,809.57
  6. Step 6: Final answer
    x = 3,175.85

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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.