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Finding the Fourth Proportional to 1,898.76, 2,847.58 and 803.10

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Solution

The fourth proportional to 1,898.76, 2,847.58 and 803.10 is: 1,204.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898.76 : 2,847.58 = 803.10 : x
  2. Step 2: Convert to fraction form
    1,898.76/2,847.58 = 803.10/x
  3. Step 3: Cross multiply
    1,898.76x = 2,847.58 × 803.10
  4. Step 4: Simplify right side
    1,898.76x = 2,286,891.50
  5. Step 5: Solve for x
    x = 2,286,891.50/1,898.76
  6. Step 6: Final answer
    x = 1,204.41

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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.