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Finding the Fourth Proportional to 1,983.44, 2,975.47 and 522.71

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Solution

The fourth proportional to 1,983.44, 2,975.47 and 522.71 is: 784.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,983.44 : 2,975.47 = 522.71 : x
  2. Step 2: Convert to fraction form
    1,983.44/2,975.47 = 522.71/x
  3. Step 3: Cross multiply
    1,983.44x = 2,975.47 × 522.71
  4. Step 4: Simplify right side
    1,983.44x = 1,555,302.90
  5. Step 5: Solve for x
    x = 1,555,302.90/1,983.44
  6. Step 6: Final answer
    x = 784.14

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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.