Home / 6,402.60-8,838.36-4,168.80

Finding the Fourth Proportional to 6,402.60, 8,838.36 and 4,168.80

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Solution

The fourth proportional to 6,402.60, 8,838.36 and 4,168.80 is: 5,754.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,402.60 : 8,838.36 = 4,168.80 : x
  2. Step 2: Convert to fraction form
    6,402.60/8,838.36 = 4,168.80/x
  3. Step 3: Cross multiply
    6,402.60x = 8,838.36 × 4,168.80
  4. Step 4: Simplify right side
    6,402.60x = 36,845,355.17
  5. Step 5: Solve for x
    x = 36,845,355.17/6,402.60
  6. Step 6: Final answer
    x = 5,754.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.