Home / 5,359.92-8,040.78-2,072.70

Finding the Fourth Proportional to 5,359.92, 8,040.78 and 2,072.70

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Solution

The fourth proportional to 5,359.92, 8,040.78 and 2,072.70 is: 3,109.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,359.92 : 8,040.78 = 2,072.70 : x
  2. Step 2: Convert to fraction form
    5,359.92/8,040.78 = 2,072.70/x
  3. Step 3: Cross multiply
    5,359.92x = 8,040.78 × 2,072.70
  4. Step 4: Simplify right side
    5,359.92x = 16,666,124.71
  5. Step 5: Solve for x
    x = 16,666,124.71/5,359.92
  6. Step 6: Final answer
    x = 3,109.40

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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.