Home / 7,140.03-10,709.00-4,179.84

Finding the Fourth Proportional to 7,140.03, 10,709.00 and 4,179.84

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Solution

The fourth proportional to 7,140.03, 10,709.00 and 4,179.84 is: 6,269.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.03 : 10,709.00 = 4,179.84 : x
  2. Step 2: Convert to fraction form
    7,140.03/10,709.00 = 4,179.84/x
  3. Step 3: Cross multiply
    7,140.03x = 10,709.00 × 4,179.84
  4. Step 4: Simplify right side
    7,140.03x = 44,761,885.66
  5. Step 5: Solve for x
    x = 44,761,885.66/7,140.03
  6. Step 6: Final answer
    x = 6,269.15

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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.