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Finding the Fourth Proportional to 1,673.64, 2,510.14 and 851.68

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Solution

The fourth proportional to 1,673.64, 2,510.14 and 851.68 is: 1,277.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,673.64 : 2,510.14 = 851.68 : x
  2. Step 2: Convert to fraction form
    1,673.64/2,510.14 = 851.68/x
  3. Step 3: Cross multiply
    1,673.64x = 2,510.14 × 851.68
  4. Step 4: Simplify right side
    1,673.64x = 2,137,836.04
  5. Step 5: Solve for x
    x = 2,137,836.04/1,673.64
  6. Step 6: Final answer
    x = 1,277.36

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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.