Home / 6,077.58-8,356.77-5,191.80

Finding the Fourth Proportional to 6,077.58, 8,356.77 and 5,191.80

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Solution

The fourth proportional to 6,077.58, 8,356.77 and 5,191.80 is: 7,138.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,077.58 : 8,356.77 = 5,191.80 : x
  2. Step 2: Convert to fraction form
    6,077.58/8,356.77 = 5,191.80/x
  3. Step 3: Cross multiply
    6,077.58x = 8,356.77 × 5,191.80
  4. Step 4: Simplify right side
    6,077.58x = 43,386,678.49
  5. Step 5: Solve for x
    x = 43,386,678.49/6,077.58
  6. Step 6: Final answer
    x = 7,138.81

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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.