Home / 7,731.40-11,597.10-2,537.80

Finding the Fourth Proportional to 7,731.40, 11,597.10 and 2,537.80

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Solution

The fourth proportional to 7,731.40, 11,597.10 and 2,537.80 is: 3,806.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,731.40 : 11,597.10 = 2,537.80 : x
  2. Step 2: Convert to fraction form
    7,731.40/11,597.10 = 2,537.80/x
  3. Step 3: Cross multiply
    7,731.40x = 11,597.10 × 2,537.80
  4. Step 4: Simplify right side
    7,731.40x = 29,431,120.38
  5. Step 5: Solve for x
    x = 29,431,120.38/7,731.40
  6. Step 6: Final answer
    x = 3,806.70

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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.