Home / 1,170.24-1,614.92-646.27

Finding the Fourth Proportional to 1,170.24, 1,614.92 and 646.27

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Solution

The fourth proportional to 1,170.24, 1,614.92 and 646.27 is: 891.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170.24 : 1,614.92 = 646.27 : x
  2. Step 2: Convert to fraction form
    1,170.24/1,614.92 = 646.27/x
  3. Step 3: Cross multiply
    1,170.24x = 1,614.92 × 646.27
  4. Step 4: Simplify right side
    1,170.24x = 1,043,674.35
  5. Step 5: Solve for x
    x = 1,043,674.35/1,170.24
  6. Step 6: Final answer
    x = 891.85

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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.