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Finding the Fourth Proportional to 2,017.70, 3,025.12 and 784.08

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Solution

The fourth proportional to 2,017.70, 3,025.12 and 784.08 is: 1,175.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,017.70 : 3,025.12 = 784.08 : x
  2. Step 2: Convert to fraction form
    2,017.70/3,025.12 = 784.08/x
  3. Step 3: Cross multiply
    2,017.70x = 3,025.12 × 784.08
  4. Step 4: Simplify right side
    2,017.70x = 2,371,936.09
  5. Step 5: Solve for x
    x = 2,371,936.09/2,017.70
  6. Step 6: Final answer
    x = 1,175.56

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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.