Home / 6,139.09-9,214.35-4,385.80

Finding the Fourth Proportional to 6,139.09, 9,214.35 and 4,385.80

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Solution

The fourth proportional to 6,139.09, 9,214.35 and 4,385.80 is: 6,582.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,139.09 : 9,214.35 = 4,385.80 : x
  2. Step 2: Convert to fraction form
    6,139.09/9,214.35 = 4,385.80/x
  3. Step 3: Cross multiply
    6,139.09x = 9,214.35 × 4,385.80
  4. Step 4: Simplify right side
    6,139.09x = 40,412,296.23
  5. Step 5: Solve for x
    x = 40,412,296.23/6,139.09
  6. Step 6: Final answer
    x = 6,582.78

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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.