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Finding the Fourth Proportional to 2,099.88, 2,898.90 and 1,437

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Solution

The fourth proportional to 2,099.88, 2,898.90 and 1,437 is: 1,983.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,099.88 : 2,898.90 = 1,437 : x
  2. Step 2: Convert to fraction form
    2,099.88/2,898.90 = 1,437/x
  3. Step 3: Cross multiply
    2,099.88x = 2,898.90 × 1,437
  4. Step 4: Simplify right side
    2,099.88x = 4,165,719.30
  5. Step 5: Solve for x
    x = 4,165,719.30/2,099.88
  6. Step 6: Final answer
    x = 1,983.79

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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.