Home / 7,720.19-10,654.15-4,694.43

Finding the Fourth Proportional to 7,720.19, 10,654.15 and 4,694.43

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Solution

The fourth proportional to 7,720.19, 10,654.15 and 4,694.43 is: 6,478.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,720.19 : 10,654.15 = 4,694.43 : x
  2. Step 2: Convert to fraction form
    7,720.19/10,654.15 = 4,694.43/x
  3. Step 3: Cross multiply
    7,720.19x = 10,654.15 × 4,694.43
  4. Step 4: Simplify right side
    7,720.19x = 50,015,148.63
  5. Step 5: Solve for x
    x = 50,015,148.63/7,720.19
  6. Step 6: Final answer
    x = 6,478.49

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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.