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Finding the Fourth Proportional to 2,804.28, 4,206.62 and 724.29

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Solution

The fourth proportional to 2,804.28, 4,206.62 and 724.29 is: 1,086.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,804.28 : 4,206.62 = 724.29 : x
  2. Step 2: Convert to fraction form
    2,804.28/4,206.62 = 724.29/x
  3. Step 3: Cross multiply
    2,804.28x = 4,206.62 × 724.29
  4. Step 4: Simplify right side
    2,804.28x = 3,046,809.18
  5. Step 5: Solve for x
    x = 3,046,809.18/2,804.28
  6. Step 6: Final answer
    x = 1,086.49

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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.