Home / 2,879.64-3,975.36-2,030.16

Finding the Fourth Proportional to 2,879.64, 3,975.36 and 2,030.16

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Solution

The fourth proportional to 2,879.64, 3,975.36 and 2,030.16 is: 2,802.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.64 : 3,975.36 = 2,030.16 : x
  2. Step 2: Convert to fraction form
    2,879.64/3,975.36 = 2,030.16/x
  3. Step 3: Cross multiply
    2,879.64x = 3,975.36 × 2,030.16
  4. Step 4: Simplify right side
    2,879.64x = 8,070,616.86
  5. Step 5: Solve for x
    x = 8,070,616.86/2,879.64
  6. Step 6: Final answer
    x = 2,802.65

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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.