Home / 6,281.50-9,423.60-2,121.62

Finding the Fourth Proportional to 6,281.50, 9,423.60 and 2,121.62

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Solution

The fourth proportional to 6,281.50, 9,423.60 and 2,121.62 is: 3,182.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,281.50 : 9,423.60 = 2,121.62 : x
  2. Step 2: Convert to fraction form
    6,281.50/9,423.60 = 2,121.62/x
  3. Step 3: Cross multiply
    6,281.50x = 9,423.60 × 2,121.62
  4. Step 4: Simplify right side
    6,281.50x = 19,993,298.23
  5. Step 5: Solve for x
    x = 19,993,298.23/6,281.50
  6. Step 6: Final answer
    x = 3,182.89

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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.