Home / 2,688.38-4,031.00-1,043.01

Finding the Fourth Proportional to 2,688.38, 4,031.00 and 1,043.01

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Solution

The fourth proportional to 2,688.38, 4,031.00 and 1,043.01 is: 1,563.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.38 : 4,031.00 = 1,043.01 : x
  2. Step 2: Convert to fraction form
    2,688.38/4,031.00 = 1,043.01/x
  3. Step 3: Cross multiply
    2,688.38x = 4,031.00 × 1,043.01
  4. Step 4: Simplify right side
    2,688.38x = 4,204,355.76
  5. Step 5: Solve for x
    x = 4,204,355.76/2,688.38
  6. Step 6: Final answer
    x = 1,563.90

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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.