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Finding the Fourth Proportional to 3,529.52, 4,870.79 and 1,936.32

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Solution

The fourth proportional to 3,529.52, 4,870.79 and 1,936.32 is: 2,672.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,529.52 : 4,870.79 = 1,936.32 : x
  2. Step 2: Convert to fraction form
    3,529.52/4,870.79 = 1,936.32/x
  3. Step 3: Cross multiply
    3,529.52x = 4,870.79 × 1,936.32
  4. Step 4: Simplify right side
    3,529.52x = 9,431,387.41
  5. Step 5: Solve for x
    x = 9,431,387.41/3,529.52
  6. Step 6: Final answer
    x = 2,672.15

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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.