Home / 2,879.28-4,319.64-2,670.12

Finding the Fourth Proportional to 2,879.28, 4,319.64 and 2,670.12

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Solution

The fourth proportional to 2,879.28, 4,319.64 and 2,670.12 is: 4,005.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.28 : 4,319.64 = 2,670.12 : x
  2. Step 2: Convert to fraction form
    2,879.28/4,319.64 = 2,670.12/x
  3. Step 3: Cross multiply
    2,879.28x = 4,319.64 × 2,670.12
  4. Step 4: Simplify right side
    2,879.28x = 11,533,957.16
  5. Step 5: Solve for x
    x = 11,533,957.16/2,879.28
  6. Step 6: Final answer
    x = 4,005.85

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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.