Home / 2,899.28-4,000.56-1,904.96

Finding the Fourth Proportional to 2,899.28, 4,000.56 and 1,904.96

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Solution

The fourth proportional to 2,899.28, 4,000.56 and 1,904.96 is: 2,628.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,899.28 : 4,000.56 = 1,904.96 : x
  2. Step 2: Convert to fraction form
    2,899.28/4,000.56 = 1,904.96/x
  3. Step 3: Cross multiply
    2,899.28x = 4,000.56 × 1,904.96
  4. Step 4: Simplify right side
    2,899.28x = 7,620,906.78
  5. Step 5: Solve for x
    x = 7,620,906.78/2,899.28
  6. Step 6: Final answer
    x = 2,628.55

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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.