Home / 1,641.60-2,265.36-942.96

Finding the Fourth Proportional to 1,641.60, 2,265.36 and 942.96

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Solution

The fourth proportional to 1,641.60, 2,265.36 and 942.96 is: 1,301.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,641.60 : 2,265.36 = 942.96 : x
  2. Step 2: Convert to fraction form
    1,641.60/2,265.36 = 942.96/x
  3. Step 3: Cross multiply
    1,641.60x = 2,265.36 × 942.96
  4. Step 4: Simplify right side
    1,641.60x = 2,136,143.87
  5. Step 5: Solve for x
    x = 2,136,143.87/1,641.60
  6. Step 6: Final answer
    x = 1,301.26

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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.