Home / 7,897.91-11,837.90-2,631.69

Finding the Fourth Proportional to 7,897.91, 11,837.90 and 2,631.69

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Solution

The fourth proportional to 7,897.91, 11,837.90 and 2,631.69 is: 3,944.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,897.91 : 11,837.90 = 2,631.69 : x
  2. Step 2: Convert to fraction form
    7,897.91/11,837.90 = 2,631.69/x
  3. Step 3: Cross multiply
    7,897.91x = 11,837.90 × 2,631.69
  4. Step 4: Simplify right side
    7,897.91x = 31,153,674.83
  5. Step 5: Solve for x
    x = 31,153,674.83/7,897.91
  6. Step 6: Final answer
    x = 3,944.55

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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.