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Finding the Fourth Proportional to 6,750.70, 10,124.70 and 3,240.70

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Solution

The fourth proportional to 6,750.70, 10,124.70 and 3,240.70 is: 4,860.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,750.70 : 10,124.70 = 3,240.70 : x
  2. Step 2: Convert to fraction form
    6,750.70/10,124.70 = 3,240.70/x
  3. Step 3: Cross multiply
    6,750.70x = 10,124.70 × 3,240.70
  4. Step 4: Simplify right side
    6,750.70x = 32,811,115.29
  5. Step 5: Solve for x
    x = 32,811,115.29/6,750.70
  6. Step 6: Final answer
    x = 4,860.40

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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.