Home / 4,077.20-6,115.79-1,155.53

Finding the Fourth Proportional to 4,077.20, 6,115.79 and 1,155.53

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Solution

The fourth proportional to 4,077.20, 6,115.79 and 1,155.53 is: 1,733.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,077.20 : 6,115.79 = 1,155.53 : x
  2. Step 2: Convert to fraction form
    4,077.20/6,115.79 = 1,155.53/x
  3. Step 3: Cross multiply
    4,077.20x = 6,115.79 × 1,155.53
  4. Step 4: Simplify right side
    4,077.20x = 7,066,997.00
  5. Step 5: Solve for x
    x = 7,066,997.00/4,077.20
  6. Step 6: Final answer
    x = 1,733.30

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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.