Home / 5,336.40-8,003.70-1,439.90

Finding the Fourth Proportional to 5,336.40, 8,003.70 and 1,439.90

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Solution

The fourth proportional to 5,336.40, 8,003.70 and 1,439.90 is: 2,159.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,336.40 : 8,003.70 = 1,439.90 : x
  2. Step 2: Convert to fraction form
    5,336.40/8,003.70 = 1,439.90/x
  3. Step 3: Cross multiply
    5,336.40x = 8,003.70 × 1,439.90
  4. Step 4: Simplify right side
    5,336.40x = 11,524,487.61
  5. Step 5: Solve for x
    x = 11,524,487.61/5,336.40
  6. Step 6: Final answer
    x = 2,159.60

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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.