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Finding the Fourth Proportional to 4,719.43, 7,081.80 and 4,347.64

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Solution

The fourth proportional to 4,719.43, 7,081.80 and 4,347.64 is: 6,523.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,719.43 : 7,081.80 = 4,347.64 : x
  2. Step 2: Convert to fraction form
    4,719.43/7,081.80 = 4,347.64/x
  3. Step 3: Cross multiply
    4,719.43x = 7,081.80 × 4,347.64
  4. Step 4: Simplify right side
    4,719.43x = 30,789,116.95
  5. Step 5: Solve for x
    x = 30,789,116.95/4,719.43
  6. Step 6: Final answer
    x = 6,523.91

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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.