Home / 6,291.79-9,437.68-1,909.24

Finding the Fourth Proportional to 6,291.79, 9,437.68 and 1,909.24

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Solution

The fourth proportional to 6,291.79, 9,437.68 and 1,909.24 is: 2,863.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,291.79 : 9,437.68 = 1,909.24 : x
  2. Step 2: Convert to fraction form
    6,291.79/9,437.68 = 1,909.24/x
  3. Step 3: Cross multiply
    6,291.79x = 9,437.68 × 1,909.24
  4. Step 4: Simplify right side
    6,291.79x = 18,018,796.16
  5. Step 5: Solve for x
    x = 18,018,796.16/6,291.79
  6. Step 6: Final answer
    x = 2,863.86

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Similar ratio
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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.