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Finding the Fourth Proportional to 4,319.90, 5,961.42 and 2,456.90

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Solution

The fourth proportional to 4,319.90, 5,961.42 and 2,456.90 is: 3,390.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,319.90 : 5,961.42 = 2,456.90 : x
  2. Step 2: Convert to fraction form
    4,319.90/5,961.42 = 2,456.90/x
  3. Step 3: Cross multiply
    4,319.90x = 5,961.42 × 2,456.90
  4. Step 4: Simplify right side
    4,319.90x = 14,646,582.99
  5. Step 5: Solve for x
    x = 14,646,582.99/4,319.90
  6. Step 6: Final answer
    x = 3,390.50

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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.