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Finding the Fourth Proportional to 3,381.71, 5,072.90 and 1,303.45

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Solution

The fourth proportional to 3,381.71, 5,072.90 and 1,303.45 is: 1,955.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,381.71 : 5,072.90 = 1,303.45 : x
  2. Step 2: Convert to fraction form
    3,381.71/5,072.90 = 1,303.45/x
  3. Step 3: Cross multiply
    3,381.71x = 5,072.90 × 1,303.45
  4. Step 4: Simplify right side
    3,381.71x = 6,612,262.08
  5. Step 5: Solve for x
    x = 6,612,262.08/3,381.71
  6. Step 6: Final answer
    x = 1,955.30

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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.