Home / 2,904.60-4,008.36-1,645.86

Finding the Fourth Proportional to 2,904.60, 4,008.36 and 1,645.86

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Solution

The fourth proportional to 2,904.60, 4,008.36 and 1,645.86 is: 2,271.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,904.60 : 4,008.36 = 1,645.86 : x
  2. Step 2: Convert to fraction form
    2,904.60/4,008.36 = 1,645.86/x
  3. Step 3: Cross multiply
    2,904.60x = 4,008.36 × 1,645.86
  4. Step 4: Simplify right side
    2,904.60x = 6,597,199.39
  5. Step 5: Solve for x
    x = 6,597,199.39/2,904.60
  6. Step 6: Final answer
    x = 2,271.29

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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.