Home / 1,566.47-2,161.58-936.87

Finding the Fourth Proportional to 1,566.47, 2,161.58 and 936.87

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Solution

The fourth proportional to 1,566.47, 2,161.58 and 936.87 is: 1,292.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,566.47 : 2,161.58 = 936.87 : x
  2. Step 2: Convert to fraction form
    1,566.47/2,161.58 = 936.87/x
  3. Step 3: Cross multiply
    1,566.47x = 2,161.58 × 936.87
  4. Step 4: Simplify right side
    1,566.47x = 2,025,103.96
  5. Step 5: Solve for x
    x = 2,025,103.96/1,566.47
  6. Step 6: Final answer
    x = 1,292.79

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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.