Home / 5,205.30-7,815.15-4,110.90

Finding the Fourth Proportional to 5,205.30, 7,815.15 and 4,110.90

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Solution

The fourth proportional to 5,205.30, 7,815.15 and 4,110.90 is: 6,172.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,205.30 : 7,815.15 = 4,110.90 : x
  2. Step 2: Convert to fraction form
    5,205.30/7,815.15 = 4,110.90/x
  3. Step 3: Cross multiply
    5,205.30x = 7,815.15 × 4,110.90
  4. Step 4: Simplify right side
    5,205.30x = 32,127,300.14
  5. Step 5: Solve for x
    x = 32,127,300.14/5,205.30
  6. Step 6: Final answer
    x = 6,172.04

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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.