Home / 3,886.60-5,829.34-1,664.04

Finding the Fourth Proportional to 3,886.60, 5,829.34 and 1,664.04

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Solution

The fourth proportional to 3,886.60, 5,829.34 and 1,664.04 is: 2,495.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,886.60 : 5,829.34 = 1,664.04 : x
  2. Step 2: Convert to fraction form
    3,886.60/5,829.34 = 1,664.04/x
  3. Step 3: Cross multiply
    3,886.60x = 5,829.34 × 1,664.04
  4. Step 4: Simplify right side
    3,886.60x = 9,700,254.93
  5. Step 5: Solve for x
    x = 9,700,254.93/3,886.60
  6. Step 6: Final answer
    x = 2,495.82

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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.