Home / 4,909.40-7,367.21-1,789.10

Finding the Fourth Proportional to 4,909.40, 7,367.21 and 1,789.10

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Solution

The fourth proportional to 4,909.40, 7,367.21 and 1,789.10 is: 2,684.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,909.40 : 7,367.21 = 1,789.10 : x
  2. Step 2: Convert to fraction form
    4,909.40/7,367.21 = 1,789.10/x
  3. Step 3: Cross multiply
    4,909.40x = 7,367.21 × 1,789.10
  4. Step 4: Simplify right side
    4,909.40x = 13,180,643.05
  5. Step 5: Solve for x
    x = 13,180,643.05/4,909.40
  6. Step 6: Final answer
    x = 2,684.78

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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.