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Finding the Fourth Proportional to 2,879.96, 4,319.88 and 932.16

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Solution

The fourth proportional to 2,879.96, 4,319.88 and 932.16 is: 1,398.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.96 : 4,319.88 = 932.16 : x
  2. Step 2: Convert to fraction form
    2,879.96/4,319.88 = 932.16/x
  3. Step 3: Cross multiply
    2,879.96x = 4,319.88 × 932.16
  4. Step 4: Simplify right side
    2,879.96x = 4,026,812.99
  5. Step 5: Solve for x
    x = 4,026,812.99/2,879.96
  6. Step 6: Final answer
    x = 1,398.22

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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.