Home / 7,897.12-11,846.21-2,631.92

Finding the Fourth Proportional to 7,897.12, 11,846.21 and 2,631.92

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Solution

The fourth proportional to 7,897.12, 11,846.21 and 2,631.92 is: 3,948.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,897.12 : 11,846.21 = 2,631.92 : x
  2. Step 2: Convert to fraction form
    7,897.12/11,846.21 = 2,631.92/x
  3. Step 3: Cross multiply
    7,897.12x = 11,846.21 × 2,631.92
  4. Step 4: Simplify right side
    7,897.12x = 31,178,204.63
  5. Step 5: Solve for x
    x = 31,178,204.63/7,897.12
  6. Step 6: Final answer
    x = 3,948.05

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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.