Home / 7,419.60-10,238.70-4,276.80

Finding the Fourth Proportional to 7,419.60, 10,238.70 and 4,276.80

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Solution

The fourth proportional to 7,419.60, 10,238.70 and 4,276.80 is: 5,901.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.60 : 10,238.70 = 4,276.80 : x
  2. Step 2: Convert to fraction form
    7,419.60/10,238.70 = 4,276.80/x
  3. Step 3: Cross multiply
    7,419.60x = 10,238.70 × 4,276.80
  4. Step 4: Simplify right side
    7,419.60x = 43,788,872.16
  5. Step 5: Solve for x
    x = 43,788,872.16/7,419.60
  6. Step 6: Final answer
    x = 5,901.78

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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.