Home / 2,904.96-4,008.96-1,971.84

Finding the Fourth Proportional to 2,904.96, 4,008.96 and 1,971.84

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Solution

The fourth proportional to 2,904.96, 4,008.96 and 1,971.84 is: 2,721.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,904.96 : 4,008.96 = 1,971.84 : x
  2. Step 2: Convert to fraction form
    2,904.96/4,008.96 = 1,971.84/x
  3. Step 3: Cross multiply
    2,904.96x = 4,008.96 × 1,971.84
  4. Step 4: Simplify right side
    2,904.96x = 7,905,027.69
  5. Step 5: Solve for x
    x = 7,905,027.69/2,904.96
  6. Step 6: Final answer
    x = 2,721.22

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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.