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Finding the Fourth Proportional to 3,392.43, 4,681.55 and 1,900.37

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Solution

The fourth proportional to 3,392.43, 4,681.55 and 1,900.37 is: 2,622.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,392.43 : 4,681.55 = 1,900.37 : x
  2. Step 2: Convert to fraction form
    3,392.43/4,681.55 = 1,900.37/x
  3. Step 3: Cross multiply
    3,392.43x = 4,681.55 × 1,900.37
  4. Step 4: Simplify right side
    3,392.43x = 8,896,644.26
  5. Step 5: Solve for x
    x = 8,896,644.26/3,392.43
  6. Step 6: Final answer
    x = 2,622.50

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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.