Home / 6,121.40-9,177.98-2,225.30

Finding the Fourth Proportional to 6,121.40, 9,177.98 and 2,225.30

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Solution

The fourth proportional to 6,121.40, 9,177.98 and 2,225.30 is: 3,336.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.40 : 9,177.98 = 2,225.30 : x
  2. Step 2: Convert to fraction form
    6,121.40/9,177.98 = 2,225.30/x
  3. Step 3: Cross multiply
    6,121.40x = 9,177.98 × 2,225.30
  4. Step 4: Simplify right side
    6,121.40x = 20,423,758.89
  5. Step 5: Solve for x
    x = 20,423,758.89/6,121.40
  6. Step 6: Final answer
    x = 3,336.45

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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.