Home / 4,153.68-6,229.88-1,380.40

Finding the Fourth Proportional to 4,153.68, 6,229.88 and 1,380.40

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Solution

The fourth proportional to 4,153.68, 6,229.88 and 1,380.40 is: 2,070.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,153.68 : 6,229.88 = 1,380.40 : x
  2. Step 2: Convert to fraction form
    4,153.68/6,229.88 = 1,380.40/x
  3. Step 3: Cross multiply
    4,153.68x = 6,229.88 × 1,380.40
  4. Step 4: Simplify right side
    4,153.68x = 8,599,726.35
  5. Step 5: Solve for x
    x = 8,599,726.35/4,153.68
  6. Step 6: Final answer
    x = 2,070.39

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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.