Home / 7,279.81-10,901.78-4,152.09

Finding the Fourth Proportional to 7,279.81, 10,901.78 and 4,152.09

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Solution

The fourth proportional to 7,279.81, 10,901.78 and 4,152.09 is: 6,217.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,279.81 : 10,901.78 = 4,152.09 : x
  2. Step 2: Convert to fraction form
    7,279.81/10,901.78 = 4,152.09/x
  3. Step 3: Cross multiply
    7,279.81x = 10,901.78 × 4,152.09
  4. Step 4: Simplify right side
    7,279.81x = 45,265,207.41
  5. Step 5: Solve for x
    x = 45,265,207.41/7,279.81
  6. Step 6: Final answer
    x = 6,217.91

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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.