Home / 1,666.40-2,497.92-936.32

Finding the Fourth Proportional to 1,666.40, 2,497.92 and 936.32

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Solution

The fourth proportional to 1,666.40, 2,497.92 and 936.32 is: 1,403.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,666.40 : 2,497.92 = 936.32 : x
  2. Step 2: Convert to fraction form
    1,666.40/2,497.92 = 936.32/x
  3. Step 3: Cross multiply
    1,666.40x = 2,497.92 × 936.32
  4. Step 4: Simplify right side
    1,666.40x = 2,338,852.45
  5. Step 5: Solve for x
    x = 2,338,852.45/1,666.40
  6. Step 6: Final answer
    x = 1,403.54

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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.