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Finding the Fourth Proportional to 1,254.36, 1,730.27 and 756.71

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Solution

The fourth proportional to 1,254.36, 1,730.27 and 756.71 is: 1,043.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,254.36 : 1,730.27 = 756.71 : x
  2. Step 2: Convert to fraction form
    1,254.36/1,730.27 = 756.71/x
  3. Step 3: Cross multiply
    1,254.36x = 1,730.27 × 756.71
  4. Step 4: Simplify right side
    1,254.36x = 1,309,300.18
  5. Step 5: Solve for x
    x = 1,309,300.18/1,254.36
  6. Step 6: Final answer
    x = 1,043.80

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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.