Home / 2,890.28-4,335.60-1,158.68

Finding the Fourth Proportional to 2,890.28, 4,335.60 and 1,158.68

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Solution

The fourth proportional to 2,890.28, 4,335.60 and 1,158.68 is: 1,738.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890.28 : 4,335.60 = 1,158.68 : x
  2. Step 2: Convert to fraction form
    2,890.28/4,335.60 = 1,158.68/x
  3. Step 3: Cross multiply
    2,890.28x = 4,335.60 × 1,158.68
  4. Step 4: Simplify right side
    2,890.28x = 5,023,573.01
  5. Step 5: Solve for x
    x = 5,023,573.01/2,890.28
  6. Step 6: Final answer
    x = 1,738.09

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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.