Home / 4,120.60-5,686.98-2,443.48

Finding the Fourth Proportional to 4,120.60, 5,686.98 and 2,443.48

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Solution

The fourth proportional to 4,120.60, 5,686.98 and 2,443.48 is: 3,372.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.60 : 5,686.98 = 2,443.48 : x
  2. Step 2: Convert to fraction form
    4,120.60/5,686.98 = 2,443.48/x
  3. Step 3: Cross multiply
    4,120.60x = 5,686.98 × 2,443.48
  4. Step 4: Simplify right side
    4,120.60x = 13,896,021.89
  5. Step 5: Solve for x
    x = 13,896,021.89/4,120.60
  6. Step 6: Final answer
    x = 3,372.33

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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.