Home / 2,826.60-4,240.08-977.88

Finding the Fourth Proportional to 2,826.60, 4,240.08 and 977.88

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Solution

The fourth proportional to 2,826.60, 4,240.08 and 977.88 is: 1,466.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,826.60 : 4,240.08 = 977.88 : x
  2. Step 2: Convert to fraction form
    2,826.60/4,240.08 = 977.88/x
  3. Step 3: Cross multiply
    2,826.60x = 4,240.08 × 977.88
  4. Step 4: Simplify right side
    2,826.60x = 4,146,289.43
  5. Step 5: Solve for x
    x = 4,146,289.43/2,826.60
  6. Step 6: Final answer
    x = 1,466.88

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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.