Home / 5,240.60-7,861.70-3,264.72

Finding the Fourth Proportional to 5,240.60, 7,861.70 and 3,264.72

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Solution

The fourth proportional to 5,240.60, 7,861.70 and 3,264.72 is: 4,897.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,240.60 : 7,861.70 = 3,264.72 : x
  2. Step 2: Convert to fraction form
    5,240.60/7,861.70 = 3,264.72/x
  3. Step 3: Cross multiply
    5,240.60x = 7,861.70 × 3,264.72
  4. Step 4: Simplify right side
    5,240.60x = 25,666,249.22
  5. Step 5: Solve for x
    x = 25,666,249.22/5,240.60
  6. Step 6: Final answer
    x = 4,897.58

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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.