Home / 1,564.60-2,342.10-1,391.80

Finding the Fourth Proportional to 1,564.60, 2,342.10 and 1,391.80

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Solution

The fourth proportional to 1,564.60, 2,342.10 and 1,391.80 is: 2,083.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,564.60 : 2,342.10 = 1,391.80 : x
  2. Step 2: Convert to fraction form
    1,564.60/2,342.10 = 1,391.80/x
  3. Step 3: Cross multiply
    1,564.60x = 2,342.10 × 1,391.80
  4. Step 4: Simplify right side
    1,564.60x = 3,259,734.78
  5. Step 5: Solve for x
    x = 3,259,734.78/1,564.60
  6. Step 6: Final answer
    x = 2,083.43

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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.