Home / 5,069.80-7,611.90-3,125.80

Finding the Fourth Proportional to 5,069.80, 7,611.90 and 3,125.80

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Solution

The fourth proportional to 5,069.80, 7,611.90 and 3,125.80 is: 4,693.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,069.80 : 7,611.90 = 3,125.80 : x
  2. Step 2: Convert to fraction form
    5,069.80/7,611.90 = 3,125.80/x
  3. Step 3: Cross multiply
    5,069.80x = 7,611.90 × 3,125.80
  4. Step 4: Simplify right side
    5,069.80x = 23,793,277.02
  5. Step 5: Solve for x
    x = 23,793,277.02/5,069.80
  6. Step 6: Final answer
    x = 4,693.14

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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.