Home / 6,291.61-9,437.31-2,131.58

Finding the Fourth Proportional to 6,291.61, 9,437.31 and 2,131.58

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Solution

The fourth proportional to 6,291.61, 9,437.31 and 2,131.58 is: 3,197.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,291.61 : 9,437.31 = 2,131.58 : x
  2. Step 2: Convert to fraction form
    6,291.61/9,437.31 = 2,131.58/x
  3. Step 3: Cross multiply
    6,291.61x = 9,437.31 × 2,131.58
  4. Step 4: Simplify right side
    6,291.61x = 20,116,404.84
  5. Step 5: Solve for x
    x = 20,116,404.84/6,291.61
  6. Step 6: Final answer
    x = 3,197.34

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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.